9: Temp and Ideal gas

Question 1

State conditions for thermal equilibrium

Answer 1

1. No net transfer of thermal energy between bodies in thermal contact
2. Bodies are of same temperature

Question 2

What is an Ideal gas?

Answer 2

[explain the formula]
An ideal gas is a theoretical gas that obeys the equation pV = nRT,
at all pressures p, volume V and thermodynamic temperature T for a fixed mass of gas
and where R is the molar mass constant and n is the amount of gas in moles

Question 3

How to proof pV = 1/3Nm<c^2>

Answer 3

1. Change in momentum
2. Find frequency
3. N2L: F = p/t = pf
4. Pressure = F/A
5. Mean square speed: Sum of speed^2 = Number of particles x mean speed^2
6. <c^2> = 1/3<cx^2>
   proven

Question 4

Equation for ideal gas

Answer 4

pV = nRT = NkT

Question 5

Equation for mean KE of one particle

Answer 5

<KE> = (3/2)kT
</KE>

Question 6

Equation for total KE (ideal gas)

Answer 6

Total KE = (3/2)NkT = (3/2)nRT = (3/2)pV