JEE Main 2026 — Apr 2, Shift 1 — Chemistry solution

JEE Main2026Apr 2, Shift 1Chemistry

At the transition temperature $T$ , $A ⇌ B$ and $Δ G^{0} = 105 - 35 lo g T$ where $A$ and $B$ are two states of substance $X$ . The transition temperature in $^{\circ}$ C when pressure is $1$ atm is _____. (Nearest integer)

Your answer

Solution

At the transition temperature, $A$ and $B$ are in equilibrium under standard pressure, so $Δ G^{0} = 0$ .

$105 - 35 lo g T = 0 \Rightarrow lo g T = 3 \Rightarrow T = 1000$ K

Converting to Celsius: $T = 1000 - 273 = 72 7^{\circ}$ C.

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