Book: Lakhmir Singh & Manjit Kaur - Physics
Chapter: 3. Sources of Energy
Subject: Physics - Class 10th
Q. No. 18 of Long Answer Type Questions-Pg-122
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18
The calorific value and ignition temperature of fuel A are 55 kJ/g and 80oC, 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.
Fuel A:
Advantages:
No toxic gases are released.
Proper ignition temperature of around 80°C.
Disadvantages:
It has a lower calorific value of 55kJ/g.
Fuel B:
Advantages:
It has a high calorific value of 80kJ/g.
Disadvantages:
It releases toxic gases like CO and SO2.
It has a very low ignition temperature of 10°C.
