1.

How much energy will 1 kg mass of wood yield on complete combustion if its calorific value were 18 kJ g^(-1)?

Answer»

Solution :(i) DEFINITION and formula for CALORIFIC value.
(ii) Find the amount of mass of FUEL (m) and its calorific value (s).
CONVERTS the calorificvalue in terms of `J kg^(-1)`
Then, the amount of heat energy (Q) released will be Q=ms
Substitute the value of 'm' and 's' and find the value of Q
18 MJ


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