Which of the following relations are correct? A. B. C. D. Choose the most appropriate answer from the options given below: [2023]

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Solution

Q.
Which of the following relations are correct

A. $Δ U = q + P Δ V$

B. $Δ G = Δ H - T Δ S$

C. $Δ S = \frac{q_{rev}}{T}$

D. $Δ H = Δ U - Δ n R T$

Choose the most appropriate answer from the options given below: [2023]

1 B and C only

2 B and D only

3 C and D only

4 A and B only

Ans.
(1)

$(A) Δ U = q + w$

$Δ U = q - P Δ V$

$(B) Δ G = Δ H - T Δ S$

$(C) Δ S = \frac{q_{rev}}{T}$

$(D) Δ H = Δ V + Δ n_{g} R T$

So correct option are B and C only.

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