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Use each of the following reaction quotients to write the balanced equation:

(a)Q=[CO2]2[H2O]2[C2H4][O2]3(b)Q=[NH3]4[O2]7[NO2]4[H2O]6

Short Answer

Expert verified

(a) For reaction quotient , Q=[CO2]2[H2O]2)[C2H4][O2]3The balanced equation is: C2H4(g)+3O2(g)⇌4NH3(g)+7O2(g)

(b) For reaction quotient ,role="math" localid="1654928140294" Q=[NH3]4[O2]2)NO24[H2O]6The balanced equation is:4NO2(g)+6H2O(g)⇌4NH3(g)+7O2(g)

Step by step solution

01

Step 1: Write the balanced equation for Q=[NH3]4[O2]2)[NO2]4[H2O]6

For any given reaction;

A(g)+2B(g)3C(g)+4D(g)

Reaction quotient =ProductReactant

∴QC=[C]3[D]4[A][B]2

Hence in the reaction, numerator is product and denominator is reactant. Powers are the coefficients

(a) Thus, for reaction quotient,

Q=[CO2]2[H2O]2([C2H4][O2]3)

The balanced equation is

C2H4(g)+3O2(g)⇌4NH3(g)+7O2(g)

02

Step 2: Write the balanced equation for Q=[NH3]4[O2]2)[NO2]4[H2O]6

(b) Forreaction quotient,

Q=[NH3]4[O2]2)NO24[H2O]6

The balanced equation is:

4NO2(g)+6H2O(g)⇌4NH3(g)+7O2(g)

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Most popular questions from this chapter

An engineer examining the oxidation of SO2 in the manufacture

of sulfuric acid determines thatKC=1.7×108at 600. K:

2SO2(g)+O2(g)⇌2SO3(g)

(a) At equilibrium,PSO3=300.atmandPO2=100.atm.CalculatePSO2

(b) The engineer places a mixture of 0.0040 mol of SO2(g) and 0.0028 mol of O2(g) in a 1.0-L container and raises the temperature to 1000 K. At equilibrium, 0.0020 mol of SO3(g) is present. Calculate Kc and for this reaction at 1000. K.

A key step in the extraction of iron from its or

FeO(s)+CO(g)□Fe(s)+CO2(g)KP=0.403at1000∘C

This step occurs in the 700∘C to 1200∘C zone within a blast furnace. What are the equilibrium partial pressures of CO(g) and CO2(g) when 1.00 atm of CO(g) and excess FeO(s) react in a sealed container at 1000∘C?

Predict the effect of increasing the container volume on the amounts of each reactant and product in the following reactions:

(a) CH3OH(I)⇌CH3OH(g)

(b) CH4(g)+NH3(g)⇌HCN(g)+3H2(g)

Consider the formation of ammonia in two experiments.

  1. To a 1.00-L container at727oC1.30mol of N2and 1.65molofH2are added. At equilibrium, 0.100molofNH3 is present. Calculate the equilibrium concentrations of N2andH2, and find Kcfor the reaction: 2NH3(g)→N2(g)+3H2(g)
  2. In a different 1.00-L container at the same temperature, equilibrium is established with 8.34×10-2molofNH3,1.50molofN2,and1.25molofH2 present. CalculateKc for the reaction:NH3(g)→N2(g)+32H2(g)
  3. (c) What is the relationship between the Kc values in parts (a) and (b) ? Why aren't these values the same?

When ammonia is made industrially, the mixture of N2,H2, anddata-custom-editor="chemistry" NH3 that emerges from the reaction chamber is far from equilibrium. Why does the plant supervisor use reaction conditions that produce less than the maximum yield of ammonia?

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