Answer to Question #284698 in Physical Chemistry for Ruru

Question

At a certain temperature and a total pressure of 10^6 Pa iodine vapour contains 40% by volume of 1atoms

I2(g -2l(g)

a) Calculate Kp for the equilibrium

b) At what total pressure (without temperature change) would the % of 1atoms be reduced to 20%

Answer 1

Total pressure 1atm = 10⁶pa

Kp=(0.2×10⁶)²/0.8×10⁶

= 5×10³