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chem chapter 10 vocab
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Gravity
Terms in this set (23)
Diffusion
spontaneous mixing of the particles of two substances caused by their random motion
Effusion
A process by which gas particles pass through a tiny opening
Elastic Collision
A collision in which the total momentum and the total kinetic energy are conserved.
Fluids
a substance that can flow and therefore take the shape of its container; a liquid or a gas
Ideal Gas
An imaginary gas that fits all the assumptions of the kinetic-molecular theory
Kinetic-Molecular Theory
a theory based on the idea that particles of matter are always in motion
Real Gas
a gas that does not behave completely according to the assumptions of the kinetic-molecular theory
Atmosphere of Pressure
the pressure of Earth's atmosphere at sea level; exactly equivalent to 760 mm Hg
Barometer
An instrument that measures atmospheric pressure
Millimeters of Mercury
mmHg
Newton
SI unit of force
Pascal
the pressure exerted by a force of one newton acting on an area of one square meter
Pressure
Force per unit area.
Standard Temperature and Pressure
Standard set of conditions agreed upon my scientists equal to 1 atm and 0 degrees Celcius
Torr
equals 1 mmHg
Absolute Zero
the temperature −273.15°C, given a value of zero in the Kelvin scale
Boyle's Law
The relationship between the pressure and volume of a gas at constant temperture; when volume increase, pressure decreases.
Charles's Law
the volume of a fixed mass of gas at constant pressure varies directly with the Kelvin temperature
Combined Gas Law
Expresses the relationship between pressure, volume, and temperature of a fixed amount of gas
Dalton's Law of Partial Pressures
the total pressure exerted by the sum of the partial pressure of the gases present.
Gas Laws
simple mathematical relationships between the volume, temperature, pressure, and quantity of a gas
Gay-Lussac's law
The pressure of a fixed mass of gas at constant volume varies directly with temperature
Partial Pressure
the pressure of each gas in a mixture
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