Practice Quiz: Module 8 Unit 6

The reaction for the decomposition of PCl5 to chlorine and PCl3 is shown below.

PCl5(g) ⇌ PCl3(g) + Cl2(g)

If the equilibrium concentrations are [PCl5] = 1.0 M, [PCl3] = 0.10 M, [Cl2] = 0.10 M, what is the value of the equilibrium constant?

For the following reaction, the equilibrium constant Kc is 2.0.  If the concentration of both

products is 0.10 M at equilibrium, what is the concentration of NOBr?

2NOBr(g)  ⇌ 2NO(g) + Br2(g)

For the following reaction, the equilibrium constant Kc is 0.60 at a certain temperature. If the concentration of NO(g) and NOBr(g) are both 0.50 M,at equilibrium, what is the concentration of Br2(g)?

2NO(g) + Br2(g) ⇌ 2NOBr(g)