1-Find the appropiate equilibrium constant (Kp) for the reaction below under the

ID: 800789 • Letter: 1

Question

1-Find the appropiate equilibrium constant (Kp) for the reaction below under the following conditions.

1/2SnO2 (s) + H2(g) <--> H2O(g) + 1/2 Sn(s)

a)At 650 degrees celsius the equilibrium steam - H2 mixture was 38 % H2 by volume.

b)At 800 degrees celsius the equilibrium steam- H2 mixture was 22% H2 by volume.

c)Would you run this reaction at high or low temperature for the most efficient reduction of Tin (IV)

2) -At 35degrees celsius, Kc=1.6*10^-5 for the reaction

2NOCl(g) <--> 2NO(g) +Cl2(g)

Caluculate the concentrations of all species at equilibrium for each of the following original mixtures

a) 1.0 mole NOCl in a 1.0 L container

b) 1.00 mol NO and 0.50 mol Cl2 in a 1.0 L container

c)1.00 mol NO and 0.75 mol Cl2 in a 1.0 L container

3)Use the following reaction for the next two problems:

2A (g)+B(g) <--> 3C (g) + D(g)

*Determine Kc if 6 .0 moles of A added to 6.0 moles of B in a 2.0 L flask yields 0.10 moles of D at equilibrium.

*Determine the equilibrium concentration of D from the following initial concentrations.

a) 6.0 moles A +6.0 moles B in 1.0L flask.

b)3.0 mole A +3.0 moles B in a 2.0L flask.

c)6.0 moles C + 6.0 moles D in a 2.0L flask.

d) 2.0 moles A + 1.0 moles B + 3.0 moles C+ 1.0 moles D in a 2.0L flask.

4)A solution is prepared having having the following initial concentrations:

[Fe3+]=[Hg2 2+] = 0.5000M; [Fe3+]= [Hg2+]=0.03000M

*The following reaction occurs among the ions ata certain temperature.

2Fe3+ (aq) +Hg2 2+ (aq)<-->2Fe2+(aq) +2Hg2+(aq) Kc=9.14*10^-8

What will be the ion concentrations when equilibrium is established?

1) 1.6, 3.5, high temp

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