JEE Main 2018ChemistryThermodynamics (C)EasyMCQ

JEE Main 2018 — Thermodynamics (C) Question with Solution

JEE Main 2018 (15 Apr)

Question

For which of the following reactions, ∆H is equal to ∆U?

Choose an option

Show full solutionCorrect option: B
Correct answer
B2HI g→H2g+I2g

Step-by-step explanation

∆H=∆U+∆ngRT

2HI (g)→H2 (g)+I2 (g)

∆ng=1+1-2=0

so, ∆H=∆U.
 

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About this question

This is a previous-year question from JEE Main 2018, covering the Thermodynamics (C) 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.