AP CollegeBoard AP Chemistry
Test Booklet
Unit 9 Review

2X(g) + Y(g) = 3Z(g)
The reaction mixture represented above is at equilibrium at 298 K, and the molar concentrations
are [X] - 2.0 M. [= 0.5 M, and [2] = 4.0 M. What is the value of the equilibrium constant for the
reaction at 298 K ?
0.50
2.0
4.0
16
32
I