The effect of temperature on spontaneity of reactions are represented as: Δ H Δ S Temperature Spontaneity --- --- --- --- --- (A) + - any T Non Spontaneity (B) + + low T Spontaneity (C) - - low T Non Spontaneity (D) - + any T Spontaneity

Chemistry · Thermodynamics & Thermochemistry

JEE Main 2025 — 23 January, Evening Shift — Question 26

The effect of temperature on spontaneity of reactions are represented as:

$\Delta$ H	$\Delta$ S		Temperature	Spontaneity
(A)	+	-	any T	Non Spontaneity
(B)	+	+	low T	Spontaneity
(C)	-	-	low T	Non Spontaneity
(D)	-	+	any T	Spontaneity

$\because \Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}$

For spontaneity of reaction : $\Delta \mathrm{G}=-\mathrm{ve}$

Answer key and solution verified before publishing.

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