Thermal Physics

Question 1

Define internal energy

Answer 1

The sum of the random distribution of kinetic and potential energies of molecules in a closed system

Question 2

Define latent heat of fusion

Answer 2

The energy required to melt a substance at constant temperature

Question 3

Define latent heat of vaporisation

Answer 3

The energy required to boil a substance at constant temperature

Question 4

Define specific heat capacity

Answer 4

energy supplied
______________________
mass x temperature change

Question 5

Define specific latent heat

Answer 5

The energy required per kilogram of the substance to change its state without a change in temperature