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JEE Main 20252 AprilEvening Shift
Exam
JEE Main
Year
2025
Date
2 April
Shift
Evening Shift
Subject
Chemistry
Chapter
Thermodynamics (C)

JEE Main 2025 · 2 April · Evening Shift · Chemistry · Thermodynamics (C)

Which of the following graphs correctly represents the variation of...

Which of the following graphs correctly represents the variation of thermodynamic properties of Haber's process?Which of the following graphs correctly represents the variation of thermodynamic properties of Haber's process?Which of the following graphs correctly represents the variation of thermodynamic properties of Haber's process?Which of the following graphs correctly represents the variation of thermodynamic properties of Haber's process?Which of the following graphs correctly represents the variation of thermodynamic properties of Haber's process?

Options

  1. AA particle of mass m under goes oscillations about x=0 in a potential given by V(x)=(1)/(2) kx^ 2 -V_ 0 ( x a ), where
  2. BA particle of mass m under goes oscillations about x=0 in a potential given by V(x)=(1)/(2) kx^ 2 -V_ 0 ( x a ), where
  3. CA particle of mass m under goes oscillations about x=0 in a potential given by V(x)=(1)/(2) kx^ 2 -V_ 0 ( x a ), where
  4. DA particle of mass m under goes oscillations about x=0 in a potential given by V(x)=(1)/(2) kx^ 2 -V_ 0 ( x a ), where

Correct answer

A. A particle of mass m under goes oscillations about x=0 in a potential given by V(x)=(1)/(2) kx^ 2 -V_ 0 ( x a ), where

Step-by-step solution

N2(g)+3H2(g)→2NH3&ΔH∘=−ve&ΔS∘=−ve\begin{aligned}& \mathrm{N}_2(\mathrm{ g})+3 \mathrm{H}_2(\mathrm{ g}) \rightarrow 2 \mathrm{NH}_3 \& \Delta \mathrm{H}^{\circ}=-\mathrm{ve} \& \Delta \mathrm{ S}^{\circ}=-\mathrm{ve}\end{aligned}(As gaseous moles decreases).(1) As temperature increases −ΔHR0T\frac{-\Delta \mathrm{H}_R^0}{T}, decreases(2) ΔG∘=−RTln⁡KeqRln⁡Keq=−ΔG0T\Delta \mathrm{G}^{\circ}=-\mathrm{RT} \ln \mathrm{K}_{\mathrm{eq}} \mathrm{R} \ln \mathrm{K}_{\mathrm{eq}}=-\frac{\Delta \mathrm{G}^0}{\mathrm{ T}}(on increasing temperature in exothermic reaction Keq \mathrm{K}_{\text{eq }} decreases)ΔH∘\Delta \mathrm{H}^{\circ}andand\DeltaS∘\mathrm{S}^{\circ} are almost constant with temperature.
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