✓ Board-verified
Chemistry · 2026 · 4 marks
NEET 2026 · 3 May · Code 11 · Q48
Consider the following reaction: 2 A( g)+B( g) → 2 D( g) Δ U^ =-10 kJ mol^-1 and Δ S^ =-44 J K^-1 at 298 K. Identify the correct option with Δ G^ for…
Consider the following reaction :
$\displaystyle 2 \mathrm{~A}(\mathrm{~g})+\mathrm{B}(\mathrm{~g}) \rightarrow 2 \mathrm{D}(\mathrm{~g})$
$\displaystyle \Delta \mathrm{U}^{\ominus}=-10 \mathrm{~kJ} \mathrm{~mol}^{-1}$ and $\displaystyle \Delta \mathrm{S}^{\ominus}=-44 \mathrm{~J} \mathrm{~K}^{-1}$ at $\displaystyle 298$ K.
Identify the correct option with $\displaystyle \Delta \mathrm{G}^{\ominus}$ for the reaction and spontaneity of the reaction at $\displaystyle 298$ K.
(Given : $\displaystyle \mathrm{R}=8.31 \mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}$ )
Official answer
From NTA’s provisional answer key for this paper. NTA published no final key for it.
(3)
$\displaystyle +0.63568 \mathrm{~kJ} \mathrm{~mol}^{-1}$, non-spontaneous
More from Thermodynamics
- Consider the reversible processes for 1.0 mol of an ideal gas as shown in the figure. w 1, w 2, w 3 and w 4…2026
- Two moles of an ideal gas undergo free expansion from 10 L to 100 L at 300 K. The values of Δ S system and Δ…2026
- A protein undergoes reversible thermal denaturation from its initial state N to denatured state D according…2026
NEET (UG) 2026 Chemistry question, with the answer from NTA’s provisional answer key. Where our answers come from.