TS EAMCET 4-Aug-2021 Shift 2 Question Paper

For the reaction; A(g)⇌B(g)+C(g)
33% dissociation means out of one mole of AB, 1∕3mol is dissociated.
So, 1−‌

1

3

=‌

2

3

mol of A is present.
After dissociation, total number of moles are
‌

2

3

+‌

1

3

+‌

1

3

=‌

4

3

p is the total pressure.
The partial pressure of AB.
pAB=‌

2∕3

4∕3

×p=‌

p

2

The partial pressure of A and B is
pA=pB=‌

1∕3

4∕3

×p=‌

p

4

Kp=‌

pApB

pAB

⇒‌‌Kp=‌

‌ p 4 × p 4

p 2

=‌

p

8

⇒‌‌p=8Kp