Assertion :At low temperature, $Δ H$ is the dominant factor for spontaneity of a reaction. Reason: The opposing factor $T Δ S$ remains very small, at low temperature.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
$∴ Δ G = Δ H - T Δ S$
at low temperature $T Δ S$ is small.
$∴ Δ G$ is mainly governed by $Δ H$ .

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