JEE Main · Chemistry · States of Matter
Compressibility Factor Z
JEE Main asked Compressibility Factor Z 2 times in 2 of the 108 shifts Lumi analysed, in 2022 and 2023. It belongs to Real Gases, in States of Matter (Chemistry). The longest wait between two years asking it was 1 year.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 2 of 8
- First asked
- 2022
- last in 2023
- Pattern
- Occasional
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2022 and 2023. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 0 in 24 shifts · 2022: 1 in 24 shifts · 2023: 1 in 12 shifts · 2024: 0 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.
How JEE Main framed it
Numerical value is the usual form. Skill tested: calculation.
- Volume from compressibility factor
- Van der waals b from compressibility factor
Difficulty
2 of the 2 questions had a numerical answer.
Every question
All 2 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 13 Apr 2023, Shift 1 · Q82A certain quantity of real gas occupies a volume of at 100 atm and 500 K when its compressibility factor is 1.07.…MediumNumerical value
- 27 Jul 2022, Shift 2 · Q82For a real gas at 25°C temperature and high pressure (99 bar) the value of compressibility factor is 2, so the value of Vander Waal’s…MediumNumerical value
Shifts: 27 Jul 2022, Shift 2, 13 Apr 2023, Shift 1.
Same topic
Other ideas in Real Gases
Real Gases has 5 ideas JEE Main has asked; 2 of them came up in more than one question.
- Units of VdW Constants2× · 2024
- Predicting 'a' from Molecular Structureonce · 2023
- Gas Liquefactiononce · 2022
- High Pressure VdW Limitonce · 2021