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Equilibrium — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistryEquilibrium1 Mark
MCQ
Given the chemical equilibrium, A ⇌ B + C, where ΔHrxn​ is negative, what effect increasing the temperature (at constant pressure) would have on the system at equilibrium?
  • A
    No change.
  • B
    Shift to the left.
  • C
    Shift to the right.
  • D
    Shift to the left for K<1 and to the right for K>1.
✓

Answer

  1. Shift to the left.

Explanation:

A → B + C; △H < 0

Here, forward reaction is exothermic. So, if temperature is increased then as per Le Chatelier's principle, the equilibrium shifts to left side (backward direction).

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