Questions
One of the most efficient engines ever developed operates between 2100 K and 700 K. It’s actual efficiency is 40%, what percentage of it’s maximum possible efficiency is?
detailed solution
Correct option is B
percentage efficiency of heat engine is η=Thot-TcoldThotx100---(1)given Thot=2100K, Tcold=700K substitute given values in above equation(1)η=2100−7002100×100η=14002100×100η=2003%, this is maximum possible efficiency of the engine given actual efficiency is 40% percentage of actual efficiency with respect to maximum possible efficiency is=actual efficiencymaximum efficiencyx100 =402003x100 percentage of actual efficiency with respect to maximum possible efficiency=60%Talk to our academic expert!
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One of the most efficient engines ever developed operates between 2100 K and 700 K. Its actual efficiency is 40%. What percentage of its maximum possible efficiency is this?
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