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6.1. Equilibrium - 1 (chemical Equilibrium) — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry6.1. Equilibrium - 1 (chemical Equilibrium)1 Mark
MCQ
In reaction ${N_{2(g)}} + 3{H_{2(g)}}$ $\rightleftharpoons$ $2N{H_{3(g)}};\,\Delta H = - 93.6\,kJ$, the yield of ammonia does not increase when
  • A
    Pressure is increased
  • B
    Temperature is lowered
  • ✓
    Pressure is lowered
  • D
    Volume of the reaction vessel is decreased
✓

Answer

Correct option: C.
Pressure is lowered
c
Since it is an exothermic reaction, energy is released, The number of moles of products produced is also less than the number of moles of reactants involved, there by releasing excess energy. So, the equilibrium is affected by the change in pressure, temperature, and concentration.

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