Heat Capacity Quiz

What is the formula to calculate specific heat capacity?

Which of the following best defines specific latent heat?

• The amount of heat required to raise the temperature of 1 kg of a substance by 1°C.

• The amount of heat required to change the state of 1 kg of a substance without changing its temperature.

• The amount of heat required to raise the temperature of 1 g of a substance by 1°C.

• The amount of heat required to change the state of 1 g of a substance without changing its temperature.

Calculate the specific heat capacity if 5000 J of heat is required to raise the temperature of 2 kg of a substance by 5°C.

• 250 J/kg°C

• 500 J/kg°C

• 1000 J/kg°C

• 1250 J/kg°C

What is the specific latent heat of fusion?

• The heat required to change 1 kg of a substance from solid to liquid at its melting point.

• The heat required to change 1 kg of a substance from liquid to gas at its boiling point.

• The heat required to change 1 kg of a substance from gas to liquid at its condensation point.

• The heat required to change 1 kg of a substance from liquid to solid at its freezing point.

If 3000 J of heat is required to melt 0.5 kg of ice, what is the specific latent heat of fusion of ice?

• 1500 J/kg

• 3000 J/kg

• 6000 J/kg

• 12000 J/kg

Which of the following statements correctly describes the difference between specific heat capacity and specific latent heat?

• Specific heat capacity is the heat required to change the state of a substance, while specific latent heat is the heat required to raise the temperature of a substance.

• Specific heat capacity is the heat required to raise the temperature of a substance, while specific latent heat is the heat required to change the state of a substance.

• Both specific heat capacity and specific latent heat refer to the heat required to change the state of a substance.

• Both specific heat capacity and specific latent heat refer to the heat required to raise the temperature of a substance.

Which of the following is an application of specific heat capacity?

• Melting ice to cool drinks.

• Using water as a coolant in car engines.

• Boiling water to make steam.

• Freezing water to make ice.

Which of the following is an application of specific latent heat?

• Heating water to cook food.

• Using ice packs to reduce swelling.

• Using water as a coolant in car engines.

• Heating a room with a radiator.

If the specific heat capacity of a substance is 420 J/kg°C, how much heat is required to raise the temperature of 3 kg of the substance by 10°C?

• 1260 J

• 4200 J

• 12600 J

• 42000 J

If the specific latent heat of vaporisation of water is 2260 kJ/kg, how much heat is required to convert 2 kg of water at 100°C to steam at 100°C?

• 1130 kJ

• 2260 kJ

• 4520 kJ

• 9040 kJ