Question

Equilibrium constant for the reaction
P4(s) + 5O2(g) = P4O10(s)
will be ?

(1) Kc = [5O2]⁵
or
(2) Kc = [O2]⁵

Explanation needed ♣​

Answer 1

Answer:

The equilibrium reaction is P

4

(s)+5O

2

(g)⇌P

4

O

10

(s)

The expression for the equilibrium reaction is K

c

=

[P

4

][O

2

]

5

[P

4

O

10

]

=

1×[O

2

]

5

1

.

Here, [P

4

O

10

]=[P

4

]=1 as the partial pressures of the solid substances are considered as unity

Explanation:

ok.

Answer 2

Answer:

Correct option is

B

K

c

=

[O

2

]

5

1

P

4

(s)+5O

2

(g)⇌P

4

O

1

0(s)

Since the value of solids is considered to be 1

K

c

=

[O

2

]

5

(g)

1