A heat engine takes heat in at a ________________ temperature, performs work, then gives heat up at a __________ temperature

A heat engine takes in 251J of energy and loses at a lower temp 106J of energy

An engine loses 789J of energy and receives initially 1350J of energy

An engine gains 1260J of energy and loses 947J of energy

347J of heat is added at a high temperature and 245J is lost at a low temperature

789J of energy is lost at a lower temperature and 899J of energy is added at a high temperature

Which law of thermodynamics specifically mentions heat engines?

Qc in the heat efficiency equation stands for

Qh in the heat efficiency equation stands for

Is it possible for an engine to be 100% efficient?

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