(a) Any substance which upon combustion produces a usable amount of energy is known as fuel. For example wood, coal, biogas, LPG, petrol, diesel etc.
(b) Following are the characteristics of an ideal fuel:
- It is readily available.
- It is less expensive.
- It burns easily in air at a moderate rate.
- It produces a large amount of heat.
- It can be transported easily.
- It has a high calorific value.
- It does not leave behind any undesirable substances.
(c) If we consider calorific value, fuel B has a higher value and hence better heating capacity. However, the ignition temperature of fuel B is quite low which is undesirable. Also, fuel B produces SO2 on burning which is an undesirable product.
(a) Any substance which upon combustion produces a usable amount of energy is known as fuel. For example wood, coal, biogas, LPG, petrol, diesel etc.
(b) Following are the characteristics of an ideal fuel:
- It is readily available.
- It is less expensive.
- It burns easily in air at a moderate rate.
- It produces a large amount of heat.
- It can be transported easily.
- It has a high calorific value.
- It does not leave behind any undesirable substances.
(c) If we consider calorific value, fuel B has a higher value and hence better heating capacity. However, the ignition temperature of fuel B is quite low which is undesirable. Also, fuel B produces SO2 on burning which is an undesirable product.
