The equilibrium P4 (s)+6Cl2(g)⇋ 4 PCl3 (g) Is attai

Discussion Forum : Chemical Equilibrium

Question -

The equilibrium $P_{4} (s) + 6 C l_{2} (g) ⇋ 4 P C l_{3} (g)$ Is attained by mixing equal moles of $P_{4} a n d C l_{2}$ inana evacuated vessel. Then at equilibrium

Options:

A .

[C l_{2}] > [P C l_{3}]

B .

[C l_{2}] > [P_{4}]

C .

[P_{4}] > [C l_{2}]

D .

[P C l_{3}] > [P_{4}]

Answer: Option C
:
C

Solution:Correct option is c).
$\begin{matrix} P_{4} (s) + & 6 C l_{2} (g) ⇋ & 4 P C l_{3} (g) I n i t i a l m o l e s & 1 & 1 & 0 A t e q u i l i b r i u m & 1 - x & 1 - 6 x & 4 x \end{matrix}$
$A s (1 - x) > (1 - 6 x), H e n c e [P_{4}] > [C l_{2}] .$

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