[heen20]

for the reaction

H2 (g) + CO2 (g) <-----> CO (g) + H20 (g)

Kc = 0.18 at 500 degrees

calculate the concentration of H2 in an equilibrium mixture in which the molar concentrations are 0.011 mol dm-3 CO2 , 0.0030 mol dm-3 H2O and 0.041 mol dm-3 CO.

Kc = [CO] [H20] / [H2] [C02]

0.18 = 0.041 x 0.0030 / [H2] x 0.011

[H2] = 0.062

PLEASE CAN SOMEONE LET ME KNOW IF THIS IS RIGHT?!

thanx

[Yggdrasil]

Correct.  Good job. :thmbup: