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

Equilibrium Expressions

Equilibrium Expressions

#### Q. Given the reaction2NH3(g) ⇌ N2(g) + 3H2(g)At equilibrium, it was found that the concentration of H2 was 0.0591 M, the concentration of N2 was 0.0197 M...

Solved • Mon Feb 17 2020 12:50:03 GMT-0500 (EST)

Equilibrium Expressions

#### Q. What is the Kc equilibrium-constant expression for the following equilibrium?FeO(s) + H2(g) ⇌ Fe(s) + H2O(g)

Solved • Mon Feb 17 2020 12:40:16 GMT-0500 (EST)

Equilibrium Expressions

#### Q. A sample of pure NO2 gas heated to 1000 K decomposes: 2NO2(g) ⇌ 2NOg) + O2(g)       Kp = 158Analysis shows that the partial pressure of O2 is 0.25 atm...

Solved • Fri Feb 07 2020 13:11:17 GMT-0500 (EST)

Equilibrium Expressions

#### Q. The equilibrium constant associated with the reactionCu(OH)2(s) + 2HCl(aq) ⇌ 2H2O(l) + CuCl2(aq) is...E. None of the above

Solved • Tue Feb 04 2020 16:06:54 GMT-0500 (EST)