Question

Which of the following statements is accurate?

Answer 1

C. Useful energy out of a system is always less than the energy input of that system.

Explanation:

The correct statement of the given options is that useful energy out of a system is always less than the energy input of that system.

This is in compliance with the third law of thermodynamics which states that "energy transformation in a system is not 100% efficient".

• At every stage energy is usually lost when it is transformed from one form to another.
• There is no machine that is 100% efficient.
• A machine that is 100% efficient will convert all the useful energy in it to do work and even more.
• In system energy is usually lost as a result of heat and to overcome friction.
• This reduces the amount of energy out of a system.

learn more:

Third law of thermodynamics brainly.com/question/3564634

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