Study sets matching "thermodynamics"

Study sets
Classes
Users

Study sets matching "thermodynamics"

14 terms
Thermodynamics
Thermodynamics
Kinetic-molecular Theory
Thermal Energy
Temperature
The study of heat.
In a hot body the particles move faster and thus have greater…
The overall energy of motion of the particles that make up an…
The hotness of an object. It represents the average kinetic e…
Thermodynamics
The study of heat.
Kinetic-molecular Theory
In a hot body the particles move faster and thus have greater…
12 terms
Thermodynamics
Conduction
Thermal Equilibrium
Heat
Convection
Form of heat transfer where heat energy is directly transferr…
The state in which the rate of energy flow between two object…
Energy that is transformed as a consequence of temperature di…
The circulation of particles within a material caused by diff…
Conduction
Form of heat transfer where heat energy is directly transferr…
Thermal Equilibrium
The state in which the rate of energy flow between two object…
Thermodynamics
Thermodynamics
Kinetic-molecular Theory
Heat
Specific Heat
The study of heat.
In a hot body the particles move faster and thus have greater…
The energy that flows between two objects as a result of a te…
The amount of energy that must be added to raise the temperat…
Thermodynamics
The study of heat.
Kinetic-molecular Theory
In a hot body the particles move faster and thus have greater…
17 terms
Thermodynamics
Thermodynamics
Kinetic-molecular Theory
Thermal Energy
Temperature
The study of heat.
In a hot body the particles move faster and thus have greater…
The overall energy of motion of the particles that make up an…
The hotness of an object. It represents the average kinetic e…
Thermodynamics
The study of heat.
Kinetic-molecular Theory
In a hot body the particles move faster and thus have greater…
Thermodynamics
conduction
thermal equilibrium
radiation
convection
thermal (heat) transfer by the contact of two objects
when two objects are at the same temperature
heat transfer through electromagnetic radiation
transfers heat by moving currents in gases and liquids
conduction
thermal (heat) transfer by the contact of two objects
thermal equilibrium
when two objects are at the same temperature
Thermodynamics
vaporization
sublimation
phase diagram
critical temperature
the escape of molecules of a liquid from the surface to form…
a process in which a substance goes directly from a solid to…
represents phases as a function of temperature and pressure.
temperatures above which the gas cannot be turned into a liqu…
vaporization
the escape of molecules of a liquid from the surface to form…
sublimation
a process in which a substance goes directly from a solid to…
23 terms
Thermodynamics
Celsius
closed system
conduction
convection
of or denoting a scale of temperature in which water freezes…
is a physical system that does not allow certain types of tra…
the process by which heat or electricity is directly transmit…
the movement caused within a fluid by the tendency of hotter…
Celsius
of or denoting a scale of temperature in which water freezes…
closed system
is a physical system that does not allow certain types of tra…
22 terms
Thermodynamics
metabolism
catabolic pathway
anabolic pathways
entropy (S)
constant inflow and output of energy that are responsible for…
degrades food molecules and extracts useful biomolecules
rebuilds biomolecules extracted from the catabolic pathways
temperature-dependent measure of disorder within a system ... S>…
metabolism
constant inflow and output of energy that are responsible for…
catabolic pathway
degrades food molecules and extracts useful biomolecules
28 terms
Thermodynamics
Temperature
Heat (q)
Work (w)
Two ways of transferring energy
Property that reflects the random motions of the particles
Transfer of energy between two objects due to a temperature d…
A force acting over distance. In terms of energy, how energy…
Work and heat
Temperature
Property that reflects the random motions of the particles
Heat (q)
Transfer of energy between two objects due to a temperature d…
11 terms
Thermodynamics
Joule
Kinetic energy
Temperature
Heat
the unit of measure for energy
energy in motion
a measure of the average kinetic energy of a substance
the form of energy that causes molecular movement; total amou…
Joule
the unit of measure for energy
Kinetic energy
energy in motion
Thermodynamics
Thermodynamics... 'therme' & 'dynamis'
Potential energy ... definition
Potential energy ... molecular level
Kinetic energy... definition
Heat & Power
energy based on position or configuration
chemical energy is stored in the position of electrons
energy of motion
Thermodynamics... 'therme' & 'dynamis'
Heat & Power
Potential energy ... definition
energy based on position or configuration
95 terms
Thermodynamics
energy
one way flow of energy
calorie
joule
the ability to do work
What is represented in this figure?
energy required to raise 1 gram if water 1 degree Celsius, th…
energy required to raise 1 gram if water 1 degree Celsius, th…
energy
the ability to do work
one way flow of energy
What is represented in this figure?
36 terms
Thermodynamics
Enthalpy
Exothermic
Endothermic
Hess Law
1.Heat content of a specific amount of a substance
1. A process that releases energy... 2.Reactants have a higher p…
1.A process that absorbs energy... 2.Reactants have lower potent…
1. The enthalpy of a given chemical reaction is constant, reg…
Enthalpy
1.Heat content of a specific amount of a substance
Exothermic
1. A process that releases energy... 2.Reactants have a higher p…
10 terms
Thermodynamics
First law of Thermodynamics
Temperature
Heat
Conduction
Energy cannot be created or destroyed only changed in form
Average kinetic energy for a given substance
Transfer of energy from one object to another
Transfer of energy via direct contact
First law of Thermodynamics
Energy cannot be created or destroyed only changed in form
Temperature
Average kinetic energy for a given substance
Thermodynamics
Thermodynamics
Absolute zero
Internal energy
First Law of Thermodynamics
The study of heat and its transformation to different forms o…
The lowest possible temperature that a substance may have, th…
The total energy (kinetic plus potential) of the submicroscop…
A restatement of the law of energy conservation, applied to s…
Thermodynamics
The study of heat and its transformation to different forms o…
Absolute zero
The lowest possible temperature that a substance may have, th…
Thermodynamics
What is the zeroth law of thermodynami…
Describe objects in thermal equilibrium.
What does the zeroth law state?
What is temperature?
Objects are in thermal equilibrium when they are at the same…
They experience no net exchange of heat energy
Transitive property in thermal systems: If a = b and b = c, t…
- qualitative measure of how hot or cold an object is... - quant…
What is the zeroth law of thermodynami…
Objects are in thermal equilibrium when they are at the same…
Describe objects in thermal equilibrium.
They experience no net exchange of heat energy
Thermodynamics
Entropy
Gibb's free energy
Endothermic reaction
Exothermic reaction
The entropy of a system is therefore a measure of the degree…
∆G determines whether a chemical or physical process will occ…
An endothermic reaction is one that absorbs heat from the sur…
An exothermic reaction is one that releases heat to the surro…
Entropy
The entropy of a system is therefore a measure of the degree…
Gibb's free energy
∆G determines whether a chemical or physical process will occ…
43 terms
Thermodynamics
What are the three laws of thermodynam…
What are the 3 ways can you say the 2n…
Explain the 3rd law of thermodynamics
Explain the variables of the 1st Law o…
1) Conservation of energy (Energy can't be created or destroy…
For a spontaneous process:... 1) the entropy of the universe inc…
When you cool a crystal down, the elements vibrate less and l…
ΔE=q+w... ΔE= change in internal energy... q= heat (in or out of s…
What are the three laws of thermodynam…
1) Conservation of energy (Energy can't be created or destroy…
What are the 3 ways can you say the 2n…
For a spontaneous process:... 1) the entropy of the universe inc…
Thermodynamics
Standard enthalpy change of reaction (…
Entropy
Gibb's free energy
Hess's law
Standard enthalpy change is the heat transferred during a rea…
The entropy of a system is therefore a measure of the degree…
∆G determines whether a chemical or physical process will occ…
The enthalpy change for any chemical reaction is independent…
Standard enthalpy change of reaction (…
Standard enthalpy change is the heat transferred during a rea…
Entropy
The entropy of a system is therefore a measure of the degree…
14 terms
Thermodynamics
Thermodynamics
Kinetic-molecular Theory
Thermal Energy
Temperature
The study of heat.
In a hot body the particles move faster and thus have greater…
The overall energy of motion of the particles that make up an…
The hotness of an object. It represents the average kinetic e…
Thermodynamics
The study of heat.
Kinetic-molecular Theory
In a hot body the particles move faster and thus have greater…
Thermodynamics
Thermodynamics
Kinetic-molecular Theory
Temperature
Heat
The study of heat.
In a hot body the particles move faster and thus have greater…
It represents the average kinetic energy of particles in a ob…
The energy that flows between two objects as a result of a te…
Thermodynamics
The study of heat.
Kinetic-molecular Theory
In a hot body the particles move faster and thus have greater…
Thermodynamics
Temperature
Thermometer
Fahrenheit
Celsius
a measure of how hot or cold an object is.
an instrument used to measure temperature
a temperature scale on which freezing point of water is 32 de…
Temperature scale where zero is assigned to the temperature w…
Temperature
a measure of how hot or cold an object is.
Thermometer
an instrument used to measure temperature
6 terms
Thermodynamics
Thermodynamics
Laws of thermodynamics
The First Law
The Second Law
Study of energy
There are four laws of thermodynamics
It states that energy or matter can neither be created nor de…
In any cyclic process the entropy will either increase or rem…
Thermodynamics
Study of energy
Laws of thermodynamics
There are four laws of thermodynamics
12 terms
Thermodynamics
Thermodynamics
Heat
Three types of Thermodynamic Systems
Entropy
the branch of science (physics) that studies the conversion o…
A transfer of thermal energy which occurs from a warmer objec…
Open, Closed, Isolated
A measure of molecular disorder within a macroscopic system
Thermodynamics
the branch of science (physics) that studies the conversion o…
Heat
A transfer of thermal energy which occurs from a warmer objec…
thermodynamics
conduct
conductor
convection
energy
to allow heat or electricity to pass through easily (related…
a material that transmits energy (related word: conduct)
the transfer of heat through a fluid
the ability to do work or cause change; the ability to move a…
conduct
to allow heat or electricity to pass through easily (related…
conductor
a material that transmits energy (related word: conduct)
Thermodynamics?
Conduction
Convection
Electrolysis
Entropy
The transfer of heat within an object or between objects by m…
The transfer of thermal energy by movement of fluid (liquid o…
The process separating the hydrogen-oxygen bond in water usin…
The measure of how evenly distributed heat is within a system.
Conduction
The transfer of heat within an object or between objects by m…
Convection
The transfer of thermal energy by movement of fluid (liquid o…
14 terms
Thermodynamics
Thermodynamics
Kinetic-molecular Theory
Thermal Energy
Temperature
The study of heat.
In a hot body the particles move faster and thus have greater…
The overall energy of motion of the particles that make up an…
The hotness of an object. It represents the average kinetic e…
Thermodynamics
The study of heat.
Kinetic-molecular Theory
In a hot body the particles move faster and thus have greater…
17 terms
Thermodynamics
Thermodynamics
Kinetic-molecular Theory
Thermal Energy
Temperature
The study of heat.
In a hot body the particles move faster and thus have greater…
The overall energy of motion of the particles that make up an…
The hotness of an object. It represents the average kinetic e…
Thermodynamics
The study of heat.
Kinetic-molecular Theory
In a hot body the particles move faster and thus have greater…
55 terms
Thermodynamics
Thermodynamics
Energy
Zeroth Law of Thermodynamics
First Law of Thermodynamics
The science of energy
The ability to cause changes
Deals with thermal equilibrium of multiple bodies
Deals with conservation of energy; energy cannot be created o…
Thermodynamics
The science of energy
Energy
The ability to cause changes
thermodynamics
What is the First Law of Thermodynamics?
What is the Second Law of Thermodynami…
What is the Third Law of Thermodynamics?
How does this relate to photosynthesis?
Energy cannot be created or destroyed.
Entropy of any isolated system always increases.
Entropy of a system approaches a constant value as the temper…
Energy is transferred from the sun to the plant and it create…
What is the First Law of Thermodynamics?
Energy cannot be created or destroyed.
What is the Second Law of Thermodynami…
Entropy of any isolated system always increases.
22 terms
Thermodynamics
What is thermodynamics?
What are the systems in thermodynamics?
What is the Zeroth law of thermodynami…
What is the 1st law of thermodynamics?
Study of heat and energy. ... Basic idea: energy can be exchange…
1. Open system - exchange heat, work (energy) & matter... i.e.…
Two objects in thermodynamic equilibrium with a third object…
Conservation of energy: neither mass nor energy can be destro…
What is thermodynamics?
Study of heat and energy. ... Basic idea: energy can be exchange…
What are the systems in thermodynamics?
1. Open system - exchange heat, work (energy) & matter... i.e.…
Thermodynamics
Thermodynamics
Heat
Three types of Thermodynamic Systems
Entropy
the branch of science (physics) that studies the conversion o…
A transfer of thermal energy which occurs from a warmer objec…
Open, Closed, Isolated
A measure of molecular disorder within a macroscopic system
Thermodynamics
the branch of science (physics) that studies the conversion o…
Heat
A transfer of thermal energy which occurs from a warmer objec…
15 terms
Thermodynamics
compare and contrast endothermic and e…
what is a thermochemical equation?
what is meant by ΔH
what is heat of reaction
Endo is heat absorbed, Hprod> Hreact. Exo is heat released, H…
an equation that includes heat change
change in entholpy
the heat released/absorbed per mole
compare and contrast endothermic and e…
Endo is heat absorbed, Hprod> Hreact. Exo is heat released, H…
what is a thermochemical equation?
an equation that includes heat change
29 terms
Thermodynamics
Thermodynamic system (closed system)
Control volume (open system)
Property
State
A specifically identified fixed mass of material separated fr…
A region in space separated from its surroundings by real or…
A quantifiable macroscopic characteristic of system. i.e. mas…
The state of a system is defined by the values of all of the…
Thermodynamic system (closed system)
A specifically identified fixed mass of material separated fr…
Control volume (open system)
A region in space separated from its surroundings by real or…
31 terms
Thermodynamics
Most natural events involve a decrease…
An increase in energy/motion...
Energy is never created nor destroyed...
Entropy
Total energy; disorder
Decreases the overall order (organization) of the system
It simply changes form
A measure of randomness or disorder of a system
Most natural events involve a decrease…
Total energy; disorder
An increase in energy/motion...
Decreases the overall order (organization) of the system
51 terms
Thermodynamics
Open System
Closed System
Isolated System
Work
A system that can exchange both matter and energy with its su…
A system containing a fixed amount of matter; it can still ex…
An isolated system exchanges no heat and no matter with its s…
The process of achieving motion against an opposing force.... I…
Open System
A system that can exchange both matter and energy with its su…
Closed System
A system containing a fixed amount of matter; it can still ex…
26 terms
Thermodynamics
Thermal equilibrium
Zeroth Law of Thermodynamics
First Law of Thermodynamics
∆U =
The condition whereby two objects are at the same temperature…
If objects A and B are each in thermal equilibrium with objec…
Energy cannot be created or destroyed.
Q + W
Thermal equilibrium
The condition whereby two objects are at the same temperature…
Zeroth Law of Thermodynamics
If objects A and B are each in thermal equilibrium with objec…
14 terms
Thermodynamics
Thermodynamics
Kinetic-molecular Theory
Thermal Energy
Temperature
The study of heat.
In a hot body the particles move faster and thus have greater…
The overall energy of motion of the particles that make up an…
The hotness of an object. It represents the average kinetic e…
Thermodynamics
The study of heat.
Kinetic-molecular Theory
In a hot body the particles move faster and thus have greater…
28 terms
Thermodynamics
Temperature
Heat (q)
Work (w)
Two ways of transferring energy
Property that reflects the random motions of the particles
Transfer of energy between two objects due to a temperature d…
A force acting over distance. In terms of energy, how energy…
Work and heat
Temperature
Property that reflects the random motions of the particles
Heat (q)
Transfer of energy between two objects due to a temperature d…
80 terms
Thermodynamics
thermodynamics
first law of thermodynamics (the law o…
second law of thermodynamics
third law of thermodynamics
the study of heat flow.
Heat is a form of energy which can be neither created nor des…
Every energy transfer or transformation increases the entropy…
at absolute zero, the entropy of a perfect crystal is zero. t…
thermodynamics
the study of heat flow.
first law of thermodynamics (the law o…
Heat is a form of energy which can be neither created nor des…
10 terms
thermodynamics
temperature
the ability to do work
states that the energy transferred to…
Q = A + ∆U
the amount of heat in a substance
What is energy?
The first law of thermodynamics
Formula for 1th law of Thermodynamics
temperature
the amount of heat in a substance
the ability to do work
What is energy?
Thermodynamics
Entropy
Endothermic reaction
Exothermic reaction
Second law of thermodynamics
a measure of the degree of randomness
An endothermic reaction is one that absorbs heat from the sur…
An exothermic reaction is one that releases heat to the surro…
In an isolated system, natural processes are spontaneous when…
Entropy
a measure of the degree of randomness
Endothermic reaction
An endothermic reaction is one that absorbs heat from the sur…
Thermodynamics
Entropy
Gibb's free energy
Endothermic reaction
Exothermic reaction
The entropy of a system is therefore a measure of the degree…
∆G determines whether a chemical or physical process will occ…
An endothermic reaction is one that absorbs heat from the sur…
An exothermic reaction is one that releases heat to the surro…
Entropy
The entropy of a system is therefore a measure of the degree…
Gibb's free energy
∆G determines whether a chemical or physical process will occ…
Thermodynamics
thermodynamics
1st law of thermodynamics
2nd law of thermodynamics
3rd law of thermodynamics
the concept that heat is a type of energy
there is no more energy being made or destroyed in the universe
a system left to itself will move from a state of organizatio…
when you add thermal energy to a system it gets less organized
thermodynamics
the concept that heat is a type of energy
1st law of thermodynamics
there is no more energy being made or destroyed in the universe
9 terms
Thermodynamics
enthalpy of a system
AH
-AH
+AH
Total energy of a system
change in enthalpy
giving off heat, feels warm
absorbing heat, feels cold
enthalpy of a system
Total energy of a system
AH
change in enthalpy
Thermodynamics
vaporization
sublimation
phase diagram
thermodynamics
the escape of molecules of a liquid from the surface to form…
a process in which a substance goes directly from a solid to…
represents phases as a function of temperature and pressure.
the study of energy.
vaporization
the escape of molecules of a liquid from the surface to form…
sublimation
a process in which a substance goes directly from a solid to…
Thermodynamics
Closed System
Isolated System
Open System
Conduction
A system whose boundaries do not allow the transfer of energy…
Same as a closed system, there is no transfer of energy to su…
A system that allows the transfer of energy between the syste…
The transfer of heat energy from particle to particle within…
Closed System
A system whose boundaries do not allow the transfer of energy…
Isolated System
Same as a closed system, there is no transfer of energy to su…
25 terms
Thermodynamics
Entropy
Internal Energy
Fusion
Saturation Pressure
A thermodynamic property that was first introduced by Clausiu…
The measure of the unavailable energy in an irreversible proc…
The change of a pure substance from solid to liquid phase.
It refers to the pressure of the system in which change of ph…
Entropy
A thermodynamic property that was first introduced by Clausiu…
Internal Energy
The measure of the unavailable energy in an irreversible proc…
thermodynamics
thermodynamics
kinetic
EK
potential
the study of energy and its transformations
energy in motion
1/2mr^2 where m = masss and r = speed/velocitthy
energy of position
thermodynamics
the study of energy and its transformations
kinetic
energy in motion
Thermodynamics
Conduction
Convection
Radiation
Conduction
Energy is transferred by direct contact.
Energy is transferred by the mass motion of molecules.
Energy is transferred by electromagnetic radiation.
Transfer of thermal energy between things that are touching.
Conduction
Energy is transferred by direct contact.
Convection
Energy is transferred by the mass motion of molecules.
1 of 10