Question

Which is better , best , good or unsuitable fuel .
A) calorific value ( in KJ ) 100
Ignition temperature ( degree C) 5
B) Calorific value ( in KJ ) 80
Ignition temperature ( in degree C ) 70
C) Calorific value ( in KJ ) 70
Ignition temperature ( in degree C ) 80
D) Calorific value ( in KJ ) 60
Ignition temperature ( in degree C ) 90​

Answer 1

Answer:

Option A : correct answer

Explanation:

Calorific value (KJ/kg) = energy released per kg of ignition

more energy released = more calorific value

Ignition temperature (°C, °F, °K) = minimum temperature required for a fuel to burn

lower the ingition temperature = lesser the heat required to burn

Thus, (A) is the most efficient fuel among the options