Question

The calorific value of wood is higher than that of coal (True or False). Also, write the false statements in their correct form.

• A. True
• B. False

Answer 1

The correct option is B False

Understanding Calorific Value:-

• The calorific value of wood is lower than the calorific value of wood.
• Calorific value is defined as the amount of energy that a substance emits upon its complete combustion. The unit of calorific value is $\mathrm{J}/\mathrm{Kg}$.
• The calorific value of wood is 18,000KJ which is significantly lower than the calorific value of coal which is 25-35 MJ/Kg.
• This is the sole reason why coal, although it is a fossil fuel is preferred over wood in blast furnaces.