First slide

Gibb's free energy , Cell potential, Equilibrium constant

Question

For a reaction to be spontaneous at all temperatures

Easy

A

ΔH and ΔG should be negative
B

ΔG should be negative
C

ΔH and ΔG should be positive
D

Only ΔG should be positive

Solution

$\Delta G = \Delta H - T\Delta S$
For a Spontaneous process , ΔG = - ve

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