Question

Calorific value of wood is 18000 kj/kg.how much wood is required to produce heat energy of 108000 kj/kg

Answer 1

According to the question, 1kg of wood gives 18000 kJ of energy (18000 kJ/kg). Therefore, 1 kilojoule of energy comes from 1/18000kg of wood.

So for 108000 kJ of energy, 1/18000 *108000 = 6 kg.

Therefore, 6 kgs of wood are needed to produce a heat energy of 108000 kJ/kg.

Answer 2

Answer:

6kg of wood are needed to produce heat energy is 108000