Question

The initial pressure of COCI, is 1000 torr. The total
pressure of the system becomes 1500 torr, when
the equilibrium CoCl2(g) = CO(g)+C12(g) is
attained at constant temperature. The value of K
of a reaction
(1) 1500
(2) 1000
(3) 2500
(4) 500​

Answer 1

Answer:

500

Explanation:

hope you understood

Answer 2

The value of K  of the reaction is 500

Explanation:

Equilibrium constant is the ratio of the concentration of products to the concentration of reactants each term raised to its stochiometric coefficients.

The balanced chemical reaction is:

                        $COCl_2(g)\rightleftharpoons CO(g)+Cl_2(g)$                                

Initial pressure  1000 torr       0       0   

At eqm.            (1000 -x)            x          x

As we are given that:

(1000-x)+x+x= 1500

x= 500 torr

$K_p=\frac{p_{CO}\times p_{Cl_2}}{p_{COCl_2}}$

$K_p=\frac{500\times 500}{1000-500}$

$K_p=500$

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