Question

Heat engine X has an efficiency of 67%. Heat engine Y has an efficiency of 82%. Which best compares these two heat engines?

Answer 1

Heat engine X emits more energy compared to the heat engine Y. Hence, the heat engine Y can convert more heat (nearly 15% greater) into work compared to the Heat Engine X.

A heat engine is a type of system which can convert thermal energy or heat along with chemical energy into mechanical energy.

This energy can be used to carry out mechanical work. It is achieved by taking a substance from a higher temperature to a lower temperature.

Answer 2

Answer:

B. Heat engine X releases more energy to the surroundings than heat engine Y.

Explanation:

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