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chem

Terms in this set (16)

compressibility
a measure of how much the volume of matter decreases under pressure
Boyle's law
The volume of a gas at constant temperature varies inversely with the pressure exerted on it.
Charels law
The volume of a fixed mass of gas is directly related to its Kelvin temperature when pressure is held constant.
Gay-Lussac's Law
the pressure of a gas is directly proportional to the Kelvin temperature if the volume is constant
ideal gas constant
can be calculated using PV=nRT
real gases differ most from an ideal gas at
low temperatures and high pressures
partial pressure
the contribution each gas in a mixture of gases makes to the total pressure
Dalton's law
total pressure is equal to the sum of the partial pressures
diffusion
the tendency of molecules to move toward areas of lower concentration until the concentration is uniform throughout
effusion
a gas escapes through a tiny hole in its container
Grahams law
the rate of diffusion of a gas is inversely proportional to the square root of its molar mass
Why is a gas easier to compress than a liquid or a solid?
the gas particles is small
is volume is reduced what will happen to pressure
the pressure will increase
If a balloon is squeezed, what happens to the pressure of the gas inside the balloon?
it increases
when temperature and number of particles are constant what is constant
the porduct of the pressure and volumes
is a balloon is heated, what happens to the volume if pressure is constant
it increases
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