A cyclic heat engine receives 600 kJ of heat from a 1000 K source and rejects 450 kJ to a 300 K sink. The quantity \[\oint{\frac{\delta Q}{T}}\] and efficiency of the engine are respectively:

A cyclic heat engine receives 600 kJ of heat from a 1000 K source and

1.	A cyclic heat engine receives 600 kJ of heat from a 1000 K source and rejects 450 kJ to a 300 K sink. The quantity \[\oint{\frac{\delta Q}{T}}\] and efficiency of the engine are respectively:
A.	2.1 kJ/K and 70%
B.	\[-\,\,0.9\] kJ/K and 25%
C.	\[+\,\,0.9\] kJ/K and 70%
D.	\[-\,\,2.1\] kJ/K and 50%
Answer» C. \[+\,\,0.9\] kJ/K and 70%

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A cyclic heat engine receives 600 kJ of heat from a 1000 K source and rejects 450 kJ to a 300 K sink. The quantity \[\oint{\frac{\delta Q}{T}}\] and efficiency of the engine are respectively:

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