JEE Main 2024 · ChemistryNumerical answerNumerical valueEasyCalculation

JEE Main 9 April 2024, Shift 2, Chemistry Q83

Question 83 of 90 in this shift, Chemistry question 23 of 30, Section B.

When

\Delta H_{vap} = 30

kJ/mol and

\Delta S_{vap} = 75\ \mathrm{J\,mol^{-1}K^{-1}}

, then the temperature of vapour, at one atmosphere is ________ K.

Official answer

400

NTA final key.

Chapter: Thermodynamics (Chemistry)
Topic: Gibbs Free Energy
Idea tested: Gibbs Energy at Phase Transitions

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.