Question

The equilibrium constant, Kc, for the reaction A(g) + B(g) <-->AB(g) is 115 at 25 degrees C. If 1.580 x 10^(‐1) mol of A and 4.721 x 10^(‐5) mol of B are introduced into a 1.00 liter vessel at 25 degrees C, calculate the equilibrium concentration of all species. Show your work using an ICE table.

Answer 1

..........A + B ==> AB
I.....0.1580..4.721E-5....0
C........-x....-x.........x
E....0.1580-x..4.721E-5-x..x

Substitute the E line into the Kc expression and solve for x, then evaluate A and B.