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Thermodynamics

Question
CBSEENCH11008372

Match List I (equation) with List II (types of the process) and select the correct option.

List I (Equations)
List II (Types of process)

A

KP > Q

1

Non-spontaneous

B

ΔGo < RT In Q

2

Equilibrium

C

KP = Q

3

Spontaneous and endothermic

D

T> ΔH/ ΔS

4

Spontaneous

  • A
    B
    C
    D
    1
    2
    3
    4
  • A B C D
    3 4 2 1
  • A B C D
    4 1 2 3
  • A B C D
    2 1 4 3

Solution

C.

A B C D
4 1 2 3

A) When KP > Q, the reaction goes in the forward direction, ie, the reaction is spontaneous.
B) Given ΔGo < RT lnQ, thus, ΔGo = + ve and hence, the reaction is non-spontaneous.
C) At equilibrium, Kp = Q


D) T > ΔH/ΔS or TΔS >ΔH
Thus condition is true for spontaneous endothermic reactions (as ΔG greater than equal to ΔH- TΔS)