Chemistry Practice Problems Equilibrium Expressions Practice Problems Solution: The equilibrium constant for the gas phase reactio...

# Solution: The equilibrium constant for the gas phase reaction2 NH3 (g) ⇌ N2 (g) + 3 H2 (g)is Ke= 2.30 x 10-5 at 300 °C. Which one of the statements is true at equilibrium?a) The reactant predominates.b) The products predominate.c) Only products are present.d) Only the reactant is present.

###### Problem

The equilibrium constant for the gas phase reaction

2 NH3 (g) ⇌ N2 (g) + 3 H2 (g)

is Ke= 2.30 x 10-5 at 300 °C. Which one of the statements is true at equilibrium?

a) The reactant predominates.

b) The products predominate.

c) Only products are present.

d) Only the reactant is present.

###### Solution

We're being asked to identify which of the given statements is true at equilibrium for the following reaction:

2 NH3 (g) ⇌ N2 (g) + 3 H2 (g)         Ke = 2.30 x 10-5 at 300 °C

K is the equilibrium expression of the concentrations in the reaction. The general form of an equilibrium expression is:

$\overline{){\mathbf{K}}{\mathbf{=}}\frac{\mathbf{products}}{\mathbf{reactants}}}$ View Complete Written Solution

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