JEE MAIN - Chemistry (2018 - 15th April Morning Slot - No. 23)
In which of the following reactions, an increase in the volume of the container will favour the formation of products?
2NO2(g) $$\rightleftharpoons$$ 2NO(g) + O2(g)
H2(g) + I2(g) $$\rightleftharpoons$$ 2HI(g)
4NH3(g) + 5O2(g) $$\rightleftharpoons$$ 4NO(g) + 6H2O(1)
3O2 (g) $$\rightleftharpoons$$ 2O3(g)
Explanation
From Boyle's law, we know when volume increase then pressure decreases, and to keep the pressure on original value the reaction should proceeds in the direction where the number of moles of gases increases.
In this reaction, only satisfy this.
2 NO2(g) $$\rightleftharpoons$$ 2 NO(g) + O2 (g)
$$\therefore\,\,\,\,$$ $$\Delta $$ng = (2 + 1) $$-$$ 2 = 1
In this reaction, only satisfy this.
2 NO2(g) $$\rightleftharpoons$$ 2 NO(g) + O2 (g)
$$\therefore\,\,\,\,$$ $$\Delta $$ng = (2 + 1) $$-$$ 2 = 1
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