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Saturday, 31 October

JEE Main · Chemistry · Thermodynamics (Chemistry)

Temperature Dependence

JEE Main asked Temperature Dependence 3 times in 3 of the 108 shifts Lumi analysed, in 2021 and 2024. It belongs to Gibbs Free Energy, in Thermodynamics (Chemistry) (Chemistry). The longest wait between two years asking it was 3 years. In 2021 it came in more than one shift of the same year.

Updated 2026-10-24

Times asked
3
in 3 shifts
Years
2 of 8
First asked
2021
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170’200.07’210’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 2 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20241 of 18
  • 20230 of 12
  • 20220 of 24
  • 20212 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Minimum temperature for spontaneity
  • Temperature for spontaneity from dh and ds

Difficulty

Easy 2Medium 1Hard 0

3 of the 3 questions had a numerical answer.

Every question

All 3 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 6 Apr 2024, Shift 2 · Q83For the reaction at 298 K, 2A+B→C2A + B \rightarrow C, ΔH=400\Delta H = 400 kJ mol−1^{-1} and ΔS=0.2\Delta S = 0.2 kJ mol−1^{-1} K−1^{-1}. The…EasyNumerical value
  2. 26 Feb 2021, Shift 1 · Q53For a chemical reaction A+B⇌C+D\mathrm{A + B \rightleftharpoons C + D} (ΔrH⊖=80\Delta_r H^{\ominus} = 80 kJ mol−1^{-1}) the entropy change…EasyNumerical value
  3. 27 Aug 2021, Shift 2 · Q55Data given for the following reaction is as follows : FeO(s)+C(graphite)⟶Fe(s)+CO(g)\mathrm{FeO_{(s)} + C_{(graphite)} \longrightarrow Fe_{(s)} + CO_{(g)}} Table…MediumNumerical valueHas a figure

Shifts: 26 Feb 2021, Shift 1, 27 Aug 2021, Shift 2, 6 Apr 2024, Shift 2.

Same topic

Other ideas in Gibbs Free Energy

Gibbs Free Energy has 15 ideas JEE Main has asked; 5 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas