Question

Please do this physics question im desperate!!! 25 points and brainliest!

Answer 1

Answer:

GOOD MORNING BUDDY,

Second Law of Thermodynamics: It is impossible to extract an amount of heat QH from a hot reservoir and use it all to do work W. Some amount of heat QC must be exhausted to a cold reservoir. This precludes a perfect heat engine.

Heat pumps, air conditioners, and refrigerators utilize heat transfer from cold to hot. They are heat engines run backward. ... This requires work input W, which is also converted to heat transfer. Thus the heat transfer to the hot reservoir is Qh = Qc + W.

In thermodynamics and engineering, a heat engine is a system that converts heat or thermal energy—and chemical energy—to mechanical energy, which can then be used to do mechanical work. It does this by bringing a working substance from a higher state temperature to a lower state temperature.

Answer 2

Answer:

option B. is the correct answer