Question

During compression process the temperature ____________ and attains its maximum value at the end of combustion process.

(a) decreases

(b) increases

(c) remains same

(d) none of the mentioned

The question was posed to me in homework.

Question is taken from Heat Rejection topic in section Heat Rejection and Cooling of IC Engine

Answer 1

The correct answer is:

(b) increases

During the compression process in an internal combustion engine, the temperature of the air-fuel mixture increases as the volume is reduced and pressure rises. The temperature reaches its maximum value at the end of the compression stroke, just before ignition occurs. This high temperature plays a crucial role in ensuring proper combustion once the fuel is injected and ignited.