which-statement-best-describes-the-second-law-of-thermodynamics

Question

Which statement best describes the Second Law of Thermodynamics?

Accepted Answer

Energy conversion is never 100% efficient, and some energy is always lost as heat, increasing universal entropy.

Answer

Energy conversion is 100% efficient in all processes.

Answer

Energy can be created or destroyed, but not transferred.

Answer

Energy can be transferred without any increase in entropy.