An Inventor Claims to Have a Heat Engine That Has

Multiple Choice

An inventor claims to have a heat engine that has efficiency of 40% when it operates between a high temperature reservoir of 150°C and a low temperature reservoir of 30°C.This engine:

A) must violate the zeroth law of thermodynamics
B) must violate the first law of thermodynamics
C) must violate the second law of thermodynamics
D) must violate the third law of thermodynamics
E) does not necessarily violate any of the laws of thermodynamics