questions and problems answer the following write the equilibrium expressions for the following

**Step 1:** Write the equilibrium expressions for the given balanced equations:

Question

Write the equilibrium expressions for the following balanced equations: (15 points) 7H2 (g) + 2NO2 (g) -> 2NH3 (aq) + 4H2O (l) CS2 (l) + 3 Cl2 (g) -> CCl4 (l) + S2Cl2 (l) N2O4(g) + O3(g) -> N2O5(s) + O2(g) C3H8 (g) + 5O2(g) -> 3CO2(g) + 4H2O(g) C(s) + H2O(g) -> CO(g) + H2(g) Calculate K for the following reaction given the following equilibrium concentrations of PCl5, PCl3, and Cl2. (10 points) PCl5(g) -> PCl3(g) + Cl2(g) K =? Equilibrium Concentrations: 0.200 M 0.040 M 0.080 M A mixture of H2 and I2 is allowed to react at 450°C. When the equilibrium is established, the concentrations of the substances are found to be [H2]= 0.36 mol/L, [I2] = 0.29 mol/L and [HI] = 2.0 mol/L. Calculate the value of the Keq at 450°C of the reaction. (10 points) H2 (g) + I2 (g) -> 2HI(g)

          Write the equilibrium expressions for the following balanced
equations: (15 points)
7H2 (g) + 2NO2 (g) -> 2NH3 (aq) + 4H2O (l)
CS2 (l) + 3 Cl2 (g) -> CCl4 (l) + S2Cl2 (l)
N2O4(g) + O3(g) -> N2O5(s) + O2(g)
C3H8 (g) + 5O2(g) -> 3CO2(g) + 4H2O(g)
C(s) + H2O(g) -> CO(g) + H2(g)

Calculate K for the following reaction given the following
equilibrium concentrations of PCl5, PCl3, and Cl2. (10 points)
PCl5(g) -> PCl3(g) + Cl2(g)     K =?

Equilibrium Concentrations:     0.200 M        0.040 M    0.080 M

A mixture of H2 and I2 is allowed to react at 450°C. When the
equilibrium is established, the concentrations of the substances
are found to be [H2]= 0.36 mol/L, [I2] = 0.29 mol/L and [HI] = 2.0
mol/L. Calculate the value of the Keq at 450°C of the reaction. (10
points)
H2 (g) + I2 (g) -> 2HI(g)

Added by Sarah S.

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