Topic 9.2 : The Ideal Gas Law

Front

What does the classical model of an ideal gas assume about atom velocities?

Back

The instantaneous velocities of atoms are random.

Front

In the classical model of an ideal gas, how are the volumes of atoms considered?

Back

The volumes of the atoms are negligible compared to the total volume occupied by the gas.

Front

How do atoms collide in the classical model of an ideal gas?

Back

Atoms collide elastically.

Front

What are the only appreciable forces on atoms in the classical model of an ideal gas?

Back

The only appreciable forces are those that occur during collisions.

Front

What equation models the relationships in an ideal gas?

Back

PV = nRT = NkT (where P is pressure, V is volume, n is the number of moles, R is the gas constant, N is the number of atoms, and T is temperature).

Front

How can graphs be used in the context of ideal gases?

Back

Graphs modeling the pressure, temperature, and volume of gases can be used to describe or determine properties of that gas.

Front

What can be extrapolated from a graph of pressure as a function of temperature for an ideal gas?

Back

A temperature at which an ideal gas has zero pressure can be extrapolated.