JEE Main 2018ChemistryChemical EquilibriumMediumMCQ

JEE Main 2018 — Chemical Equilibrium Question with Solution

JEE Main 2018 (08 Apr)

Question

Which of the following lines correctly show the temperature dependence of equilibrium constant K, for an exothermic reaction?

 

Choose an option

Show full solutionCorrect option: B
Correct answer
BA & B

Step-by-step explanation

The Arrhenius equation in Logarithmic form:

In K=-∆HRT+ln A

On comparing with y=mx+c, m=-∆HR and c=ln A.

For an exothermic reaction, the value of ∆H<0, slope will be positive and the intercept can be either positive or negative.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Chemical Equilibrium chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2018, covering the Chemical Equilibrium chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.