Question

The amount of energy released during the combustion of a unit mass of fuel is called____.

• A. specific heat
• B. latent heat
• C. calorific value
• D. internal energy

Answer 1

The correct option is C

calorific value

Calorific value is a quantity used to measure the amount of energy released when substances are burned, mainly fuels.

It always makes sense to measure a quantity keeping another quantity constant. So, we also keep the weight of the fuel constant at 1 gram or 1 kg (a unit mass) to calculate the calorific value of that fuel.

So, calorific value is the energy released when a unit mass of fuel is burned.