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JEE Main 201815 April
Exam
JEE Main
Year
2018
Date
15 April
Subject
Chemistry
Chapter
Chemical Equilibrium

JEE Main 2018 · 15 April · Chemistry · Chemical Equilibrium

In which of the following reactions, an increase in the volume of...

In which of the following reactions, an increase in the volume of the container will favour the formation of products?

Options

  1. A4NH3(g)+5O2(g)⇌4NO(g)+6H2O(l)4{NH}_{3}\left(g\right) + 5{O}_{2}\left(g\right) ⇌ 4NO\left(g\right) + 6{H}_{2}O ( l )
  2. B2NO2(g)⇌2NO(g)+O2(g)2{NO}_{2} ( g ) ⇌ 2NO ( g ) + {O}_{2} ( g )
  3. C3O2(g)⇌2O3(g)3{O}_{2} ( g ) ⇌ 2{O}_{3} ( g )
  4. DH2(g)+I2(g)⇌2HI(g){H}_{2} ( g ) + {I}_{2} ( g ) ⇌ 2HI ( g )

Correct answer

B. 2NO2(g)⇌2NO(g)+O2(g)2{NO}_{2} ( g ) ⇌ 2NO ( g ) + {O}_{2} ( g )

Step-by-step solution

Volume↑P↓↑ P ↓ reaction proceed in the direction where number of gaseous moles increase.

2NO2(g)⇌2NO(g)+O2(g)∆ng=(2+1)−2=12N{O}_{2}\left(g\right) ⇌ 2NO\left(g\right) + {O}_{2}\left(g\right) ∆ {n}_{g} = \left(2 + 1\right) - 2 = 1
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