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Q: When will frictionless engine be 100 percent efficient?
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Why 100 percent heat not convert in mechanical work in engine?

No engine is 100% efficient: there is always some loss of energy between input and output.


Is a nuclear generator 100 percent efficient?

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What temperature is required to transfer waste heat to the environment for an heat engine to be 100 percent efficient?

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Explain whether or not a heat engine could be made 100 percent efficient by eliminating friction?

Even if the friction were totally eliminated, a heat engine still could not convert heat completely into work and be 100 percent efficient. Instead, the efficiency of an internal combustion engine depends on the difference in the temperature of the burning gases in the cylinder and the temperature of the burning gases in the cylinder and the temperature of the air outside the engine.


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f an automobile had a 100 efficient engine would it exhaust the surroundings?


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Are electric heaters 100 percent efficient?

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Why are no machines 100 percent efficient?

Some energy is lost to friction.


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