Chapter 2 Solids Liquids and Gases
Terms in this set (42)
is something that has a definite shape and volume
What are the two types of solids?
Crystalline and Amorphous
are solids that are made up of crystals
A solid made up of particles that are not arranged in a regular pattern
Salt, sugar, and snow are examples of what kind of solid?
Candle wax, glass and butter are examples of what kind of solid?
True or False - particles that make up a solid are packed very close together
True or False, Amorphous solids rapidly change their shape when they melt - candle wax
False - Amorphous solids gradually change their shape when they melt
A state of matter that has a definite volume but no definite shape.
True or False, the particles in a liquid are packed almost as closely together as those in a solid.
True, However, that particles in a liquid move around one another freely.
Anything that flows; in particular, any liquid or gas.
The result of an inward pull among the molecules of a liquid that brings the molecules on the surface closer together.
A liquid's resistance to flowing
force of gasses outward push divided by the area of the walls in its container
What is the formula for pressure?
Pressure = Force/Area
True or False, pressure is measured in units of liters or kiloliters.
false, pressure is measured in units of Pascals or kilopascals
The total energy of the motion of all the particles in an object
True or False, particles of a liquid have more thermal energy than particles of the same substance in a solid form
Which has more thermal energy, water or ice?
True or False, gas particles have less thermal energy than liquids
False, gas particles have even more thermal energy than liquids
rank the substance with the least thermal energy to the most, steam, ice, water
ice, water, steam
the change of state from a solid to a liquid
the specific temperature that crystalline solids melt
True or False, The melting point for pure water is 0c at sea level.
True or False, at a solids melting point its particles vibrate so fast that they break free from their fixed positions
Change of state from a liquid to a solid
True or False, at a liquids boiling point its particles are moving so slowly that they begin to take on fixed positions.
false, at a liquids FREEZING point its particles are moving so slowly that they begin to take on fixed positions.
True or False, as gas particles move, they spread apart, filling up the space available.
The change of state from a liquid to a gas
True or False, vaporization occurs when the particles in a liquid gain enough energy to move independently
What are the two different types of vaporization?
evaporation and boiling
True or False, gas particles constantly collide with one another but NOT with the walls of their container.
false, gas particles constantly collide with one another AND with the walls of their container.
Vaporization (change of state from a liquid to a gas) that takes place only on the surface of a liquid
Vaporization (change of state from a liquid to a gas) that takes place both below or at the surface of a liquid
The process by which a gas changes to a liquid
Condensation occurs when particles in gas lose enough thermal energy to change substances. When this happens, is the new substance a solid or a liquid?
The temperature at which a liquid changes to a gas.
A change directly from the solid to the gaseous state without becoming liquid
When the temperature of a gas is constant and the pressure is increased, its volume also increases. (proportional) When the temperature of a gas is constant and the pressure is decreased, its volume decreases
The relationship between the pressure and volume of a gas at constant temperture; when volume increase, pressure decreases.
As the value of one variable increases, the value of the other increases and vice-versa (e.g., temperature and volume, temperature and pressure)
When one variable increases the other variable decreases
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