The fuel having the lowest calorific value is:
(a) coal (b) wood (c) charcoal (d) kerosene

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Solution

Calorific value is the amount of heat energy present in food or fuel and which is determined by the complete combustion of specified quantity at constant pressure and in normal conditions.
Wood has the lowest calorific value which is 18,000 kJ/kg .

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Q. The fuel having the lowest calorific value is:

(a) coal
(b) wood
(c) charcoal
(d) kerosene

Which of the following fuels has the lowest calorific value ?

(a) kerosene

(b) CNG

(d) LPG

Fuel	Calorific Value (kj/g)
charcoal	33
coal	25.33
wood	17
diesel	45
kerosene	48
petrol	50
biogas	35 to 40
butane (LPG)	50
methane	55
hydrogen	150

Based on the table above, which of the following is the correct sequence in which the fuels that give out most heat to the least heat energy will be arranged?
(a) hydrogen, wood, coal, biogas, methane
(b) methane, kerosene, diesel, charcoal
(c) coal, kerosene, petrol, hydrogen
(d) hydrogen, butane, diesel, kerosene

Arrange the following fuels in the order of decreasing calorific values (keeping the fuel with the highest calorific value first):
Biogas, Kerosene, Wood, Petrol, Hydrogen gas, Methane

Which of the following fuels has the highest calorific value ?

Kerosene, Wood, Hydrogen, Cow-dung cakes, LPG

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The fuel having the lowest calorific value is: (a) coal (b) wood (c) charcoal (d) kerosene

Calorific value is the amount of heat energy present in food or fuel and which is determined by the complete combustion of specified quantity at constant pressure and in normal conditions.Wood has the lowest calorific value which is 18,000 kJ/kg .

The fuel having the lowest calorific value is:
(a) coal (b) wood (c) charcoal (d) kerosene

Calorific value is the amount of heat energy present in food or fuel and which is determined by the complete combustion of specified quantity at constant pressure and in normal conditions.
Wood has the lowest calorific value which is 18,000 kJ/kg .