JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyApplication

JEE Main 29 June 2022, Shift 1, Physics Q42

Question 42 of 90 in this shift, Physics question 12 of 30, Section A.

In van dar Wall equation

\left[P + \frac{a}{V^2}\right][V - b] = RT

; P is pressure, V is volume, R is universal gas constant and T is temperature. The ratio of constants

\frac{a}{b}

is dimensionally equal to :

(1) $\frac{P}{V}$
(2) $\frac{V}{P}$
(3) $PV$ Official answer
(4) $PV^3$

Official answer

Option 3

NTA final key (2022 Session 1).

Chapter: Units and Measurements
Topic: Kinetic Theory of Gases
Idea tested: Van der Waals Pressure Correction

Same topic in other shifts

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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.