Heat capacity

Question 1

Temperature

Answer 1

The average random kinetic energy of the molecules

Question 2

Thermal equilibrium

Answer 2

When two objects are of the same temperature so that there is no heat flow between them

Question 3

Internal energy

Answer 3

Total random kinetic energy of the molecules of a substance, plus total interparticle potential energy of the particles

Question 4

Transducer

Answer 4

Device that converts energy from one form to another, e.g. speaker, bulb

Question 5

Methods of energy transfer

Answer 5

1. Doing work
2. Heating
3. Radiation
4. Electricity

Question 6

Heat capacity (definition)

Answer 6

The heat energy required to raise the temperature of a body by 1 Kelvin

Question 7

Heat capacity (equation)

Answer 7

c = E / ΔT

Question 8

Specific heat capacity (definition)

Answer 8

Amount of heat energy needed to raise the temperature of 1 kg by 1K

Question 9

Specific heat capacity (equation)

Answer 9

E = mcΔT

Question 10

Sublimation

Answer 10

Solid to gas

Question 11

Deposition

Answer 11

Gas to solid

Question 12

Specific latent heat of fusion

Answer 12

Energy required to change a unit mas from solid to liquid phase at constant temperature

Question 13

Specific latent heat of vaporisation

Answer 13

Energy required to change a unit mass from liquid to vapour phase at constant temperature

Question 14

Specific latent heat equation

Answer 14

E = mL