Question

2. Describe a candle flame.
3. Mention five factors (apart from easy availability at a reasonable price) which should be
considered while choosing a fuel?​

Answer 1

2. Candles produce light by releasing heat and all the turn on the candle produces come from a chemical reaction known as combustion in which wax reacts with oxygen in the air to produce carbon dioxide. ... Flame is defined as the area of combustion of a combustible substance.

3. 1.It should have calorific values according to our need.

2.it should not produce poisonous gas during its use.

3.it should be cheap.

4.it should be easy to transport.

The ash left after burning fuel should be decomposed easily.

6.it should be available easily.

Answer 2

Explanation:

Candles produce light by releasing heat and all the turn on the candle produces come from a chemical reaction known as combustion in which wax reacts with oxygen in the air to produce carbon dioxide. ... Flame is defined as the area of combustion of a combustible substance.