The second law of thermodynamics imposes what limit on the efficiency of a heat engine? The second law of thermodynamics imposes what limit on the efficiency of a heat engine? A heat engine must deposit some energy in a cold reservoir. The energy a heat engine must deposit in a cold reservoir is greater than or equal to the energy it extracts from a hot reservoir. The energy a heat engine must deposit in a cold reservoir is greater than or equal to the energy extracted as useful work.

The limit which the Second Law of Thermodynamics imposes on the efficiency of a heat engine is that: A. A heat engine must deposit some energy in a cold reservoir.

The Second Law of Thermodynamics is typically related to a physical quantity known as entropy.

The Second Law of Thermodynamics states that the entropy of an isolated system always increases and can never be decreased.

Hence, there is a natural tendency for an isolated system to degenerate into a state of more disorderliness according to the Second Law of Thermodynamics.

Based on the Second Law of Thermodynamics, a limit is placed on the efficiency of a heat engine in that it is required that heat engine must deposit some energy in a cold reservoir because the transformation or transfer of more energy leads to a waste in energy.

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