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Spontaneity

For a chemica...

Question

For a chemical reaction, $Δ H$ and $Δ S$ are negative. State, giving reason, under what conditions this reaction is expected to occur spontaneously.

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Solution

Let us consider the $Δ G = Δ H - T Δ S$
In order to any reaction to be spontaneous $Δ G$ must have Positive value.
Therefore,
$Δ H$ and $Δ S$ are negative then,
$T Δ S < Δ H$ .

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