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1
GATE ME 1993
MCQ (Single Correct Answer)
+1
-0.3
Which among the following relations is/are valid ONLY for reversible process undergone by a pure substance?
A
$$\delta Q = dU + \delta W$$
B
$$T\,ds = dU + \delta W$$
C
$$T\,ds = dU + p\,dv$$
D
$$\delta Q = p\,dv + dU$$
2
GATE ME 1993
MCQ (Single Correct Answer)
+1
-0.3
When a system executes an irreversible cycle:
A
$$\oint {{{\delta Q} \over T}} < 0$$
B
$$\oint {dS > 0} $$
C
$$\oint {dS = 0} $$
D
$$\oint {{{\delta Q} \over T}} > 0$$
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