Thermal physics/ideal gasses

Question 1

Joule base units

Answer 1

Kg m^2 s^-2

Question 2

Specific heat capacity base units

Answer 2

m^2 s^-2 k^-1

Question 3

What is brownian motion

Answer 3

The erratic/random motion of small particles when observed through a microscope

Question 4

What are the ideal gas laws (5)

Answer 4

Forces between particles are negligible except during collisions.

Collisions are perfectly elastic.

Time of a collision is negligible compared to time between collision.

Particles occupy negligible volume compared to volume of gas.

Large number of particles in random motion.

Question 5

What is newtons 3rd law of motion

Answer 5

When two bodies interact, they apply forces to one another that are equal in magnitude and opposite in direction

Question 6

Newtons 2nd law in relation to gases in a container

Answer 6

Force on the molecule by the wall is the rate of change of momentum

Question 7

What is meant by thermal equalibrium

Answer 7

No net flow between objects

Question 8

eq for m

Answer 8

m= n x M

Question 9

eq for N

Answer 9

N= n x Na