Q.
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