2.0 molof PCl5were introduced in a vesselof 5.0 L capacityat a particular temperature . Atequilibrium PCl5 was found to be 35% dissociated into PCl3 and Cl2 . The value of Kc for the reaction is
vmasd , 7 Years ago
Grade 9
1 Answers
Vikas TU
Last Activity: 7 Years ago
PCl5 ----------> PCl3 + Cl2
t=0 0.4 0 0
t=teq. 0.4-x x x
At eqm., (0.4 -x) = 0.65*0.4
Or
x = 0.4 – 0.4*0.65
=0.4(1-0.65)
=0.4*0.35
= 0.14
Kc = 0.14*0.14/0.26
= 0.0753846
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