Please help cannot figure out! True or False: A nonideal engine operating betwee

Question

Please help cannot figure out!

True or False: A nonideal engine operating between the same temperature extremes as a Carnot engine and having the same input thermal energy will perform the same amount of work as the Carnot engine. Explain. (Select all that apply.)

True. The Carnot engine is a model that accurately describes all heat engines.

False. Carnot engines do not really exist. All real engines are less efficient.True. The efficiency of any heat engine is determined only by its input and output temperatures

.False. Since the Carnot engine has the greatest efficiency possible, other engines operating between the two temperatures produce less useful work output for the same work input.

False. All other engines operating between the two temperatures produce more useful work output than the Carnot engine for the same work input.

Explanation / Answer

"False. Since the Carnot engine has the greatest efficiency possible, other engines operating between the two temperatures produce less useful work output for the same work input."

The most efficient heat engine cycle is the Carnot cycle; consisting of two isothermal processes and two adiabatic processes. The Carnot cycle can be thought of as the most efficient heat engine cycle allowed by physical laws.

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