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JEE Main 20249 AprilEvening Shift
Exam
JEE Main
Year
2024
Date
9 April
Shift
Evening Shift
Subject
Chemistry
Chapter
Thermodynamics (C)

JEE Main 2024 · 9 April · Evening Shift · Chemistry · Thermodynamics (C)

When ( Δ H_ vap = 30 ~kJ / mol ) and ( Δ S_ vap = 75 ~J ~mol^ -1...

When (ΔHvap=\Delta \mathrm{H}_{\mathrm{vap}}=30  kJ\mathrm{~kJ}/ mol\mathrm{mol}) and (ΔSvap=\Delta \mathrm{S}_{\mathrm{vap}}=75  J mol−1 K−1\mathrm{~J} \mathrm{~mol}^{-1} \mathrm{~K}^{-1}), then the temperature of vapour, at one atmosphere is ______ (K\mathrm{K}).

Correct answer

0

Step-by-step solution

At equilibrium ΔGPT=0\Delta \mathrm{G}_{\mathrm{PT}}=0ΔHvap =TΔSvap 30×1000=T×75T=400K\begin{aligned} & \Delta \mathrm{H}_{\text{vap }}=\mathrm{T} \Delta \mathrm{S}_{\text{vap }} \\ & 30 \times 1000=\mathrm{T} \times 75 \\ & \mathrm{ T}=400 \mathrm{ K} \end{aligned}$$
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