Question

12. Which is correct :

(A) dQ = dU+dW

(B) dQ = ds/T

(C) dQ = dU + dV/P

(D) dQ = S.dT.​

Answer 1

Answer:

Option A

Explanation:

The first law of thermodynamics (dU=dW+dQ) is simply the restatement of the conservation of energy and it applies to all types of systems, whether in equilibrium or away from equilibrium (Note that however, statistical mechanics tells us that the internal energy slightly fluctuates around its mean; an offset value proportional to 1/sqrt(N) with N being the number of particles)

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Answer 2

Answer:

A

Explanation:

A is the correct answer