Question

the calorific value of wood and coal is 20000 kj /kg and 30000 kj / kg respectively. which will produce the largest amount of heat ??​
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Answer 1

Answer:

hi

Explanation:

30,000 kJ heat will produce when we burn 1kg of coal. we see same amount of wood and coal produce different amount of heat. heat produced by 1kg of coal is higher than that of wood. so, the largest amount of heat is produced by coal.

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