Question

Plz help with this question
N2O4 is in Equilibrium with 2 NO2 ,If 2 moles of N2O5 is taken and undergoes
50 % dissociation. Find the equilibrium constant.

Answer 1

Answer:

Assume initially 1 mole of N

2

O

4

is present.

The following table lists the number of moles of various species.The volume of the vessel is 2L.

Thus, the equilibrium concentrations of N

2

O

4

and NO

2

are 0.3M and 0.4M respectively.

The expression for the equilibrium constant becomes K

c

=

[N

2

O

4

]

[NO

2

]

2

=

0.3

(0.4)

2

=0.53.