Question

g The gas molecules in the internal combustion engine chamber are in a high state of random motion. When the molecules are expelled through an exhaust pipe in a more ordered state, what will their temperature be as their temperature in the chamber before being exhausted

Answer 1

Answer:

Explanation:

Entropy is the measure of randomness of a system . When heat is added to a gas , gas molecules become more random and therefore , their entropy increases . Hence at higher temperature , entropy increases and randomness increases due to addition of heat .

Hence when a gas molecules become more ordered that means entropy decreases . Hence heat is withdrawn from the system . Hence temperature of the system is decreases .

In the given case , gas molecules are made more ordered that means their temperature is decreased to lower the  entropy before they are exhausted .