Question

The calorific value of wood and coal is 20000 KJ/Kg and 30000 KJ/Kg respectively. Which will produce the most heat?

a) 500 grams of coal
b) 1 kilogram of coal
c) 500 grams of wood
d) 2 Kilograms of wood
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Answer 1

Answer:

d) 2 kilograms of wood will produce more heat.

Answer 2

Answer:

d) 2 kilograms of wood

Explanation:

Heat produced by 2 kilograms of wood= 40000 Kj

Hope this helps you (◠‿◕)