Question

Alkanes are used as fuel:

• A. because there is evolution of large amount of heat during combustion.
• B. because there is evolution of large amount of heat during conduction.
• C. because there is evolution of large amount of heat during neutralization.
• D. because there is absorption of large amount of heat during combustion.

Answer 1

The correct option is A because there is evolution of large amount of heat during combustion.

Alkanes are used as fuel because there is the evolution of a large amount of heat during combustion. Here, the purpose is to obtain as much heat as possible from a given mass of fuel.