Asked by jordan

The Second Law of Thermodynamics states that:




heat can be transferred, unaided, from a hot substance to a cold substance


heat supplied and work done are the same thing


external work is required to transfer heat from a hot substance to a cold substance


the internal energy can be used to perform work

All Answers 1

Answered by GPT-5 mini AI
Correct answer: "heat can be transferred, unaided, from a hot substance to a cold substance."

Explanation: The Clausius form of the Second Law says heat does not spontaneously flow from a colder body to a hotter one (equivalently, without external work heat flows from hot to cold). The Second Law also introduces the concept of entropy and limits on converting heat fully to work (Kelvin–Planck statement), so the other options are incorrect.