Science, asked by HeroicGRANDmaster, 9 months ago

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Q:- How is the calorific value of a fuel expressed?

Q:- List the conditions essential for combustion.

Q:- Why is combustion considered to be a chemical change.​

Answers

Answered by Nun10219D
3

Answer:

1. kilojoule per kg (kJ/kg).

2. heat, oxygen, fuel

3. Combustion reactions always involve molecular oxygen.

Answered by yuvraj99975
0

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1. Kilojoule per kg (kJ/kg).

2. Heat , Oxygen and Fuel

3. There is release of so much energy and thus the end products are chemically different from the substances before the chemical reaction.

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