JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumCalculation

JEE Main 28 July 2022, Shift 2, Chemistry Q55

Question 55 of 90 in this shift, Chemistry question 25 of 30, Section B.

At 600K, 2 mol of NO are mixed with 1 mol of

\mathrm{O_2}

\mathrm{2NO_{(g)}+O_2\,(g)\rightleftharpoons 2NO_2(g)}

The reaction occurring as above comes to equilibrium under a total pressure of 1 atm. Analysis of the system shows that 0.6 mol of oxygen are present at equilibrium. The equilibrium constant for the reaction is ______. (Nearest integer)

Official answer

NTA final key.

Chapter: Equilibrium
Topic: Chemical Equilibrium
Idea tested: Kp Expression via Partial Pressures

Same idea in other shifts

Asked 4× in all

6 Apr 2024, Shift 1 · Q63At $-20$ °C and 1 atm pressure, a cylinder is filled with equal number of $\mathrm{H_2}$ , $\mathrm{I_2}$ and HI molecules for the reaction…MediumSingle correct
24 Jun 2022, Shift 2 · Q83PCl $_5$ dissociates as PCl $_5$ (g) $\rightleftharpoons$ PCl $_3$ (g)+Cl $_2$ (g) 5 moles of PCl $_5$ are placed in a 200 litre vessel which…HardNumerical value
29 Jun 2022, Shift 2 · Q644.0 moles of argon and 5.0 moles of $\mathrm{PCl_5}$ are introduced into an evacuated flask of 100 litre capacity at 610 K. The system is…MediumSingle correct

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 108 of the 174 JEE Main shifts held from 2017 to 2026.