Measurement of heat

Question 1 of 10

How much heat is needed to melt 2 kg of ice at 0 °C? (Specific latent heat of fusion = 3.4 × 10⁵ J/kg)

Question 2 of 10

The specific heat capacity of a 2 kg metal block that needs 18,000 J to rise by 20 K is

Question 3 of 10

Evaporation causes cooling because

Question 4 of 10

In the method of mixtures, it is assumed that

Question 5 of 10

The method of mixtures assumes that

Question 6 of 10

Heat capacity is the heat needed to raise the temperature of

Question 7 of 10

A 2 kW immersion heater boils 1 kg of water at 100 °C away to steam (L = 2.26 × 10⁶ J/kg). The time taken is

Question 8 of 10

Energy needed to melt 2 kg of ice at 0 °C (L = 3.36 × 10⁵ J/kg) is

Question 9 of 10

The heat needed to change 1 kg of a solid to liquid at its melting point is the

Question 10 of 10

The heat capacity of a body is the heat needed to