Question

35. Consider the equilibrium at 760 K
PCL5 = PC13 + Cl2
4.0 moles of PCls are taken in a 2 litre flask
and at equilibrium the flask is found to contain
0.80 mole of Cl2. What is the equilibrium
constant ?​

Answer 1

Answer:

1.422

Explanation:

PCL5=PCl3+Cl2

t=0. 4. 0. 0

t=eqlm. 4-x. x. x

total moles= 4-x+x+x

0.8 = 4+x

x= - 3.2

k=(PCl3)(Cl2)

(PCl5)

= 3.2×3.2/7.2

= 10.24/7.2

= 1.422.