Question

9.The value of KC for the reaction bromine monochloride at 1000k is 5, and then the predominant one is *


a.Forward reaction is predominant

b.Reverse reaction is predominent

c.Neither forward nor reverse reaction predominates

d.All the above

​

Answer 1

Answer:

The initial concentration of BrCl,Br

2

and Cl

2

are 3.30×10

−3

M,0M and 0M respectively.

Let x M be the amount of BrCl dissociated.

The equilibrium concentrations are (3.30×10

−3

×10

−3

−x),x/2,x/2 respectively.

The equilibrium constant expression is

K

c

=

[BrCl]

2

[Br

2

][Cl

2

]

=

(3.30×10

−3

−x)

2

x/2×x/2

=32

x=3.00×10

−3

Hence, the equilibrium concentration of BrCl is 3.30×10

−3

−3.00×10

−3

=0.30×10

−3

=3.0×10

−4

M.

Answered By

toppr

Answer 2

Answer:

b.Reverse reaction is predominent is your correct ans ....