Question

Molecules in the combustion chamber of a rocket engine are in a high state of random motion. When the molecules are expelled through a nozzle in a more ordered state, will their temperature be higher than, lower than, or the same as their initial temperature in the chamber before being exhausted?

Answer 1

The temperature of molecules exhausted through the nozzle

is lower than the temperature in the chamber before being exhausted.

Step-by-step explanation: