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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
Which of the following equilibria will shift to right side on increasing the temperature?
  • A
    $CO (g) + H_2O (g)  \rightleftharpoons  CO_2 (g) + H_2 (g)$
  • B
    $2SO_2(g) + O_2 (g)  \rightleftharpoons  2SO_3 (g)$
  • ✓
    $H_2O (g)  \rightleftharpoons  H_2 (g) + 1/2O_2 (g)$
  • D
    $4HCl (g) + O_2 (g)  \rightleftharpoons  2H_2O (g) + 2Cl_2 (g)$
✓

Answer

Correct option: C.
$H_2O (g)  \rightleftharpoons  H_2 (g) + 1/2O_2 (g)$
c
Reaction $(c)$ is endothermic. Electrolysis or decomposition of $H_2O$ is endothermic in nature.

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