The change in entropy- - S is positive for an endothermic reaction- If enthalpy change - H occurs at the same temperature T- then the reaction is feasible-

The correct option is D when Δ HGiven nbsp;ΔH=+ve;ΔS=+ve Thus, nbsp;ΔG is ve only when nbsp; ΔH lt;TΔS ...

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Standard XII

Chemistry

Gibbs Free Energy & Spontaneity

The change in...

Question

The change in entropy, $Δ S$ is positive for an endothermic reaction. If enthalpy change $Δ H$ occurs at the same temperature T, then the reaction is feasible:

at all temperatures

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when

Δ H > T Δ S

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when

Δ H < T Δ S

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not feasible at all

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Solution

The correct option is D when $Δ H < T Δ S$
Given $Δ H = + v e; Δ S = + v e$
Thus, $Δ G$ is -ve only when $Δ H < T Δ S$

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Similar questions

Q. If the change in entropy

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changes appreciably.
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The change in entropy, ΔS is positive for an endothermic reaction. If enthalpy change ΔH occurs at the same temperature T, then the reaction is feasible:

The correct option is D when ΔH<TΔSGiven ΔH=+ve;ΔS=+veThus, ΔG is -ve only when ΔH<TΔS

The change in entropy, $Δ S$ is positive for an endothermic reaction. If enthalpy change $Δ H$ occurs at the same temperature T, then the reaction is feasible:

The correct option is D when $Δ H < T Δ S$
Given $Δ H = + v e; Δ S = + v e$
Thus, $Δ G$ is -ve only when $Δ H < T Δ S$