thermal properties of matter

Question 1

internal energy

Answer 1

total energy of all particles in a substance, consisting of internal kinetic energy and internal potential energy of particles

Question 2

heat capacity

Answer 2

amount of thermal energy required to raise the temperature of a substance by 1K or 1°C

Question 3

specific heat capacity

Answer 3

amount of thermal energy required to raise the temperature of a unit mass of a substance by 1K or 1°C

Question 4

latent heat

Answer 4

energy released or absorbed by a substance during a change of state, without any change in its temperature

Question 5

latent heat of fusion

Answer 5

amount of thermal energy required to change a substance from solid to liquid state, without a change in temperature

Question 6

specific latent heat of fusion

Answer 6

amount of thermal energy required to change a unit mass of a substance from solid to liquid state, without a change in temperature

Question 7

latent heat of vaporisation

Answer 7

amount of thermal energy required to change a substance from liquid to gaseous state, without a change in temperature

Question 8

specific latent heat of vaporisation

Answer 8

amount of thermal energy required to change a unit mass of substance from liquid to gaseous state, without a change in temperature

Question 9

evaporation

Answer 9

change of state of a substance from liquid to gaseous state at any temperature at surface of the liquid