Thermal

Question 1

SHC equation with a heater?

Answer 1

P/VI = Emc.. / t

Question 2

What is latent heat of fusion/vaporisation?

Answer 2

Fusion- energy required / unit mass to change state from solid to liquid

Vaporisation- energy required / unit mass to change stat from liquid to gas

Question 3

What is a mole?

Answer 3

Amount of substance containing avogrados constant of particles.

Question 4

Ideal gas laws? (Motion,volume,collisions,collisions,force)

Answer 4

-gas atoms move with random rapid motion
-Gas Atoms occupy negligible volume
-All collisions elastic
-collisions negligible time
-negligible electrostatic force between atoms

Question 5

Change of momentum during collision with container?

Answer 5

Delta P= 2mv

Question 6

Newton’s third law application?

Answer 6

Every action has an equal and opposite reaction. During collisions has atoms exert force on container walls.

Question 7

Boyles law?

Answer 7

At a fixed mass of gas and constant temperature. Pressure is inversely proportional to volume.

Question 8

Boltzmann distribution?

Answer 8

Gas atoms velocity is random. This random distribution is the Boltzmann distribution.