Question

1 mole of no2 and 2 moles of co are enclosed in one litre vessel to attain the following equilibrium no2 +co---> no + co2. it was estimated that at the equilibrium 25% of initial amount of co is consumed. the equilibrium constant kp is

a) 1
b) 1/2
c)1/4
d)1/3

Answer 1

Answer:

Please refer to the picture attached.

Answer 2

The equilibrium constant Kp is1/3

Explanation:

As we know,

1 mole of nitrogen oxide($NO_{2}$) reacts with 1 mole of carbon oxide(CO)

∵ 25% of CO

= 1/2 or 0.5 moles out of 2moles reacted with 1/2 or 0.5 moles of $NO_{2}$

$NO_{2} + CO$ ⇄ NO + $CO_{2}$

KC = (1 - 0.5) * (2 - 0.5) ⇄ (0.5) * (0.5)

KP = $\frac{(0.5) (0.5)}{(0.5) (1.5)}$

 = 1/3

Learn more: equilibrium constant kp

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