Specific Heat Capacity

• What is specific heat capacity?

  It is the amount of energy required to raise the temperature of 1 kg of a substance by 1° C.
• What is the formula to calculate the change in thermal energy?

  • Change in thermal energy (J) = mass (kg) × specific heat capacity (J/kg°C) × temperature change (°C)
• How do you calculate the energy required to increase the temperature of a substance?

  By multiplying mass, specific heat capacity, and temperature change.
• What is the specific heat capacity of water?

  4,200 J/kg°C.
• What is the specific heat capacity of aluminium?

  913 J/kg°C.
• How do you convert Joules to kilojoules?

  By dividing by 1,000.
• If you have 2 kg of water and want to raise its temperature from 20° C to 100° C, how much energy is required?

  67,200 J.