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| 1. |
Why the heat engine efficiency is not 100%? |
| Answer» It is ? all because of second law of thermodynamics!!!!!! It puts a fundamental limit on the thermal efficiency of all heat engines. Even an ideal, frictionless engine can\'t convert anywhere near 100% of its input heat into work. That\'s all, may be this will help you.?<br>it isbut only in ideal heat engine | |