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A heat engine receives 6000 J of heat from its combustion process and loses 4000 J through the exhaust and friction What is its efficiency?
Wiki User
∙ 12y ago
If you mean that 300 J is lost, not used to produce a useful output, then 200 J is the useful output. In this case the efficiency is 200/500 = 0.4, or 40 percent.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agothe total heat is 6000J and you lose 4000J in the process so
2000J is used in the process out of the total 6000J (2000J/6000J)= .33
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