Question

WHEN 20 GRAM OF CaCO3 WERE PUT INTO 10 L FLASK AND HEATED TO 800 c . 30% of CaCO3 REMAINED UNREACTED AT EQUILIBRIUM. Kp for the decomposition of CaCO3 WILL BE

Answer 1

When 20 g of CaCO3 were put into 10 litre flask & heated to 800 degree Celsius, 30% of CaCO3 remained unreacted at equilibrium . Kp for decomposition of CaCO3 will be? Ans given is 1.231.

Answer 2

Explanation:

CaCO

3

⇌CaO+CO

2

0.2 0 0 ∵30% remains unreactable

0.6 0.14 0.14

K

p

=[CO

2

]=0.14

K

p

=K

c

[RT]

△ng

=0.14×0.082×1073

=12.318

K

p

in atm/L

1.231