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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
For the gaseous phase reaction $2NO$ $\rightleftharpoons$ ${N_2} + {O_2}\,\,\,\,\Delta H^\circ = + \;43.5\,\,kcal\,mo{l^{ - 1}}$ Which statement is correct
  • A
    $K$ varies with addition of $NO$
  • ✓
    $K$ decrease as temperature decreases
  • C
    $K$ Increases as temperature decreases
  • D
    $K$ is independent of temperature
✓

Answer

Correct option: B.
$K$ decrease as temperature decreases
(b) $2.303\, log \frac{{{K_2}}}{{{K_1}}} = \frac{{\Delta H}}{R}\frac{{[{T_2} - {T_1}]}}{{{T_1} \times {T_2}}}$

$\Delta H = +ve$ for the reaction

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