InterviewSolution
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InterviewSolution
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Two Carnot engines are operated in succession. The first engine receives heat from a source at `T=800K` and rejects to sink at `T_(2)K`. The second engine receives heat rejected by the first engine and rejects to another sink at `T_(3)= 300K`. If work outputs of the two engines are equal, then find the value of `T_(2)`.A. `100K`B. `300K`C. `550K`D. `700K` |
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Answer» Correct Answer - C `eta_(A)=(T_(1)-T_(2))/(T_(1))=(W_(A))/(Q_(1)),eta_(B)=(T_(2)-T_(3))/(T_(3))=(W_(B))/(Q_(2))` `(Q_(1))/(Q_(2))=(T_(1))/(T_(2))xx(T_(2)-T_(3))/(T_(1)-T_(2))=(T_(1))/(T_(2))" "( :.W_(A)=W_(B))` `T_(2)=(T_(1)+T_(3))/(2) ` |
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