Determine the chemical equilibrium expression for the following reactions: 2NO2

Question

Determine the chemical equilibrium expression for the following reactions: 2NO2 (g) ? N2O4 (g) 2SO3 (g) ? 2SO2 (g) + O2 (g) N2 (g) + 3H2 (g) ? 2NH3 (g) 4HCl (g) + O2 (g) ? 2Cl2 (g) + 2H2O (g) Determine the chemical equilibrium constant for the following problems: At an extremely high temperature and at equilibrium, a mixture is found to have 1.83 x 10-3 M hydrogen gas, 3.13 x 10-3 M iodine vapor and 1.77 x 10-2 M hydrogen iodide gas. Calculate the equilibrium constant using the following reaction: H2 (g) + I2 (g) ? 2HI (g) A mixture has 0.400 M of SO3, 0.480 M of H2O, and 0.600 M of H2SO4. Calculate the equilibrium constant using the following reaction: SO3 (g) + H2O (g) ? H2SO4 (l)

Explanation / Answer

1)

a) 2NO2 (g) ? N2O4 (g)

Keq = [N2O4] / [NO2]^2

b) 2SO3 (g) ? 2SO2 (g) + O2 (g)

Keq = [SO2]^2[O2] / [SO3]^2

c) N2 (g) + 3H2 (g) ? 2NH3 (g)

Keq = [NH3]^2 / [N2][H2]^3

d) 4HCl (g) + O2 (g) ? 2Cl2 (g) + 2H2O (g)

Keq = [Cl2]^2[H2O]^2 / [HCl]^4[O2]

2)

H2 (g) + I2 (g) ? 2HI (g)

Keq = [HI]^2 / [H2] [I2]

     = (1.77 x 10^-2)^2 / (1.83 x 10^-3)(3.13 x 10^-3)

Keq = 54.7

3)

Kc = 1 / [SO3] [H2O]

   = 1 / (0.400) (0.480)

Kc = 5.21

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.