Two reversible engines are working in series between a high temperature reservoir at 1000 K and a low temperature reservoir at 300 K in such a way that the heat rejected by the preceding engine is completely absorbed by the succeeding engine and both the engines develop the same amount of work per cycle. What is the intermediate temperature between first and second engines?

Not possible to be estimated with the given data

Two reversible engines are working in series between a high temperatur

1.	Two reversible engines are working in series between a high temperature reservoir at 1000 K and a low temperature reservoir at 300 K in such a way that the heat rejected by the preceding engine is completely absorbed by the succeeding engine and both the engines develop the same amount of work per cycle. What is the intermediate temperature between first and second engines?
A.	700 K
B.	650 K
C.	350 K
D.	Not possible to be estimated with the given data
Answer» C. 350 K

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