આપેલી પ્રક્રિયા માટે \(\Delta H = 35.5\ kJ\ mol^{-1}\) અને \(\Delta S = 83.6\ J\ K^{-1} \ mol^{-1}\) છે. પ્રક્રિયા ક્યા તાપમાને સ્વયંભૂ થશે ? (\(\Delta H\) અને \(\Delta S\) તાપમાન સાથે બદલાતા નથી તેમ ધારો)

A \(T > 425\ K\)
B બધા તાપમાને
C \(T > 298 \ K\)
D \(T < 425\ K\)

Verified Solution

Answer & Solution

Correct Answer

(A) \(T > 425\ K\)

Step-by-step Solution

Detailed explanation

\(\Delta \mathrm{G}=\Delta \mathrm{H}-\mathrm{T} \Delta \mathrm{S}\) for equilibrium \(\Delta \mathrm{G}=0,\Delta \mathrm{H}=\mathrm{T} \Delta \mathrm{S}\)

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

સૂચિ\(- I\) સાથે સૂચિ\(-II\) ને જોડો.

સૂચિ \(- I\)	સૂચિ \(- II\)
\((a)\) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}\)	\((i)\) \(5.92 \,\mathrm{BM}\)
\((b)\) \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{3+}\)	\((ii)\) \(0 \,\mathrm{BM}\)
\((c)\) \(\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{4-}\)	\((iii)\) \(4.90\, \mathrm{BM}\)
\((d)\) \(\left[\mathrm{Fe}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right]^{2+}\)	\((iv)\) \(1.73\, \mathrm{BM}\)

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NEET 2021 Medium

સૂચિ-I ને સૂચિ-II સાથે જોડો

\(\text{List - I}\)	\(\text{List - II}\)
\(\text{A. Haber process}\)	\(\text{I. Fe catalyst}\)
\(\text{B. Wacker oxidation}\)	\(\text{II. \(\text{PdCl} _2\)}\)
\(\text{C. Wilkinson catalyst}\)	\(\text{III.}\) \(\left[\left(\text{PPh} _3\right)_3\text{RhCl} \right]\)
\(\text{D. Ziegler catalyst}\)	\(\text{IV.}\) \(\text{TiCl} _4\) with \(\text{Al} \left(\text{CH} _3\right)_3\)

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NEET 2025 Medium

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