- What is a fuel?
- Define calorific value of a fuel.
- Give the characteristics of a good fuel.
- A fuel is a substance that gives heat on burning.
- Calorific value is the amount of heat energy produced on complete combustion of 1 kg of fuel. It is expressed as KJ/Kg.
- Characteristics of a good fuel are –
(a) It should have a high calorific value.
(b) It should not leave ash behind.
(c) It should be easy to store, transport and handle.
(d) It should have a convenient ignition temperature.
Related Articles
- Define calorific value of a fuel.
- (a) Define the calorific value of a fuel.(b) “The calorific value of LPG is 55000 KJ/kg”. What does it mean?
- Name the unit in which the calorific value of a fuel is expressed.
- The calorific value of a fuel is 40000KJ/kg. This fuel is most likely to be:biogasmethanehydrogen gasliquefied petroleum gas
- Define ignition temperature of a fuel.
- (a) What are fuels? Name any two common fuels.(b) State any four characteristics of an ideal fuel(or good fuel).
- (a) What is a fuel? Give five examples of fuels.(b) What are the characteristics of an ideal fuel (or good fuel)? (c) The calorific value and ignition temperature of fuel A are 55 kJ/g and 80°C, respectively. These values for fuel B are 80 kJ/g and 10°C, respectively. On burning, the fuel A produces CO2 and H2O while the fuel B produces CO2, CO, and SO2. Give three points of relative advantages and disadvantages of these two fuels.
- Why is LPG considered a good fuel?
- Give one example of a good domestic fuel.
- What is the amount of heat when calorific value is 150000 and amount of fuel is 5
- A good fuel should possess(a) high ignition temperature(b) moderate ignition temperature(c) high calorific value(d) both high calorific value and moderate ignition temperature
- Hydrogen has the highest calorific value, but it is not used as a fuel. Why?
- A good fuel is one which possesses:(a) high calorific value and low ignition temperature. (b) high calorific value and high ignition temperature. (c) high calorific value and moderate ignition temperature. (d) low calorific value and moderate ignition temperature.
- The total amount of heat produced by a fuel having a calorific value of 20kJ/kg was found to be 50,000 joules. How much fuel was burnt?
- In an experiment, 4.5 kg of a fuel was completely burnt. The heat produced was measured to be 1,80,000 kJ. Calculate the calorific value of the fuel.
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