Ideal Gases

Question 1

What is meant by an ideal gas?

Answer 1

An ideal gas is a gas where pressure and volume are directly proportional to the thermodynamic temperature of the gas. At all values of P, V and T

Question 2

What are the two equations for an ideal gas?

Answer 2

PV = nRT (number of moles)
PV = NkT (number of molecules)

Question 3

State the equation that relates the pressure, volume and mean squared velocity of a gas molecule.

Answer 3

PV = 1/3 * N * m <c^2>

Question 4

State the equation that relates the kinetic energy of a gas to its temperature.

Answer 4

E = 3/2 kT

Question 5

What are the basic assumptions in the kinetic theory of gases? ( 5 max)

Answer 5

-Particles are in constant random motion.
-There are negligible forces between the particles.
-All collisions are perfectly elastic.
-The time of coliisions is negligible.
-PArticles have negligible volume compared to the gas.

Question 6

Define the mole

Answer 6

The amount of matter which contains the same number of atoms/nuclei as there are in 12 g of carbon-12.