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Abnormal Colligative Properties

4 moles of PC...

Question

4 moles of PCl5 dissociates at 760 k in 2 litre flask, at equilibrium. 0.8 mole of Cl2 was present in flask. The euilibrium cons†an t would be

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Q. 4.0 moles of

P C l_{5}

dissociate at 760 K in a 2 litre flask,

P C l_{5} (g) ⇌ P C l_{5} (g) + C l_{2} (g)

at equilibrium. 0.8 mole of

C l_{2}

was present in the flask.The equilibrium constant would be:

4.0 m o l e s

P C l_{5}

760 K

2

P C l_{5} (g) ⇌ P C l_{3} (g) + C l_{2} (g)

at equilibrium.

0.8 m o l e

C l_{2}

was present in the flask. The equilibrium constant would be

Q. Two moles of

P {C l}_{5}

were introduced in a

2

litre flask and heated at

600 K

to attain equilibrium.

P {C l}_{5}

was found to be

40

% dissociated into

P {C l}_{3}

{C l}_{2}

. Calculate the value of

K_{c}

2 m o l e P C l_{5}

were introduced in a

2 L

, flask and heated at

625 K

, to establish equilibrium when

60

P C l_{5}

was dissociated into

P C l_{3}

C l_{2}

. Find the value of equilibrium constant.

Q. 2 mole each of

P C l_{5}

C l_{2}

P C l_{3}

are taken in 5lt. flask at

27^{o} C

. After following equilibrium is attained in gaseous phase,

P C l_{5} ⇌ P C l_{3} + C l_{2}, P C l_{5}

is found to be 40% dissociated. Calculate equilibrium constant

K_{c}

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