Thermal Physics

Question 1

Internal Energy

Answer 1

The sum of the randomly distributed kinetic and potential energies of the particles in a substance

Question 2

Specific Heat Capacity

Answer 2

Energy needed to raise the temperature of a material by 1K and is measured in j/kgk

Question 3

Specific latent heat of vaporisation

Answer 3

Energy needed to change 1kg of a liquid into 1kg if gas at a constant temperature and us measured in J/Kg

Question 4

Specific latent heat of fusion

Answer 4

Energy needed to change 1 kg I a solid into the 1 kg of a liquid at a constant temperature. Measured in J/Kg

Question 5

Boyle’s Law

Answer 5

The volume of a fixed mass of gas at a constant temperature is inversely proportional to its pressure

Question 6

Charles’s Law

Answer 6

The volume of a fixed mass of a gas at constant pressure is directly proportional to its Kelvin temperature

Question 7

Pressure Law

Answer 7

For a fixed mass of gas at a constant volume the pressure is directly proportional to the kelvin temperature

Question 8

Avogadro’s Law

Answer 8

Equal volumes of gas contain equal numbers of molecules at constant temperature and pressure

Question 9

Ideal gas

Answer 9

A theoretical gas that obeys all gas laws