Chemistry

Problem

For the reaction

X_{2}(g)\rightleftharpoons 2X(g)

at a certain temperature, the equilibrium constant is

K=1.6\times10^{-2}

. At one instant the concentrations are

[X_{2}]=0.020\,\text{M}

and

[X]=0.010\,\text{M}

. Which statement best describes how the system will respond? a) The system is already at equilibrium; no net change will occur. b) The system will shift left, producing more

X_{2}(g)

until equilibrium is reached. c) The system will shift right, producing more

X(g)

until equilibrium is reached. d) No prediction can be made because the total pressure is unknown.

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