Question

in which branch of Physicswe study about stem engines?​

Answer 1

Answer:

Thermodynamics

Thermodynamics studies the effects of changes in temperature, pressure, and volume on physical systems on the macroscopic scale, and the transfer of energy as heat. Historically, thermodynamics developed out of the desire to increase the efficiency of early steam engines.

Answer 2

Answer:

hey do I study in PM's?

Thermodynamics