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Question

Endothermic reactions, having ΔS=+ve may be spontaneous if:

A
ΔH>TΔS
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B
ΔH<TΔS
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C
ΔH=TΔS
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D
T is very high
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Solution

The correct options are
A T is very high
C ΔH<TΔS
ΔG=ΔHTΔS

For a spontaneous process, ΔG must be negative. When ΔH=+ve or endothermic then to make ΔG=ve, temperature should be high so that the term TΔS. becomes greater than the term ΔH and ΔHTΔS becomes less than zero.

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