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in Chemistry by (73.1k points)

A vessel contains CO2 at 1000 k temperature with a pressure 0.5 atm.some of CO2 is converted in to CO on addition of graphite. If total pressure at equilibrium is 0.8 atm the value of KP is:

(a)  3 atm

(b)  0.3 atm

(c)  0.18 atm

(d)  1.8 atm 

1 Answer

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Best answer

Correct option  (b) 1.8 atm

Explanation:

CO2(g)  +  C(g) ⇋  2CO(g) 

initial pressure 0.5 atm 0

final pressure(0.5-x)    2x

Total pressure = 0.5 -x + 2x = 0.5 + x

= 0.8 atm

:. x = 0.3 atm.

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