JEE Main 2025 — Chemical Equilibrium Question with Solution
JEE Main 2025 (2 Apr Shift 2)
Question
Consider the following chemical equilibrium of the gas phase reaction at a constant temperature :
If being the total pressure, is the pressure equilibrium constant and is the degree of dissociation, then which of the following is true at equilibrium?
If being the total pressure, is the pressure equilibrium constant and is the degree of dissociation, then which of the following is true at equilibrium?
Choose an option
Show full solutionCorrect option: B
Correct answer
BWhen increases decreases
Step-by-step explanation
a moles of taken initially and at time Now moles fraction of and are
Now if is total pressure then partial pressure o and are
As is only function of temperature.
So as P
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This is a previous-year question from JEE Main 2025, 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.