Choose all the correct statements. All reversible engines operating between the same two reservoirs must have...

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Choose all the correct statements. All reversible engines operating between the same two reservoirs must have the same efficiency. All irreversible cycles must be less efficient than any reversible cycle, operating between the same two thermal reservoirs. It is feasible to develop a reversible heat engine with higher efficiency than Carnot heat engine. It is feasible to develop a reversible heat engine with efficiency smaller than Carnot heat engine. Choose all the correct statements. All reversible engines operating between the same two reservoirs must have the same efficiency. All irreversible cycles must be less efficient than any reversible cycle, operating between the same two thermal reservoirs. It is feasible to develop a reversible heat engine with higher efficiency than Carnot heat engine. It is feasible to develop a reversible heat engine with efficiency smaller than Carnot heat engine.