1. A reaction between substances A and B results in the reversible formation of product C A + B C: When 0.05 mol of A and 0.03 mol of B were mixed in l L of solvent at 25°C, and reaction reached equilibrium, remaining concentration of A was 0.01 mol/L. What is the approximate value of the equilibrium constant for this reaction. 2. A reaction between substances A and B results in the formation of product C: A + BE Figure show the dependence of the equilibrium constant for this reaction on temperature. Calculate AH, AS°, AG° and K for this reaction at 25°C? y =-3600x + 15 ž1 -1 -2 0.003 0.0035 0.004 0.0045 0.005 1/T, K 3) At 2000 K, an equilibrium constant for the dissociation of Brz is K = 0.6. Br: 2 2Br Calculate what per cent of molecular bromine is dissociated in equilibrium at T=2000 K and pressure p=1 bar. 4. Carbon monoxide and hydrogen can react to form formaldehyde: Co(g) + H2(g) SH;CO(g). A) Calculate the equilibrium constant of reaction at 298 K given that A, G (CO(g)) = -138 kJ mot' and A,G° (H, CO (g)) = -103 kJ mot' at this temperature. 5. Calculate the ratio K, / K. of the equilibrium constant in terms of partial pressures, K, and in terms of molar concentrations, Ke for the following reaction 2 NO (9) + O2 (g) 2 NO2 (g) 6. Osmotic pressure of a solution containing 1 g of a substance in IL of water is 5.00 kPa at 298K. What is molar mass of this substance? 7. What is the difference in chemical potentials of O, in two cylinders is its partial pressure in one of them is 100kPa, and in another 200 kPa? 8. Calculate activity coefficient y: for the aqueous solution containing 0.005 mol kg' K:PO, using limiting Debye Hcukel law. 9. 110 g of lithium sulfate was added to 1 L of water. What is freezing point of this solution? 10. The vapor pressure of pure water at 25 C is 23.80 Torr. When 90 g of glucose was added to 50 moles of water, the vapor pressure of water became 23.40 Torr. Calculate activity and activity coefficient of water in this solution?
1. A reaction between substances A and B results in the reversible formation of product C A + B C: When 0.05 mol of A and 0.03 mol of B were mixed in l L of solvent at 25°C, and reaction reached equilibrium, remaining concentration of A was 0.01 mol/L. What is the approximate value of the equilibrium constant for this reaction. 2. A reaction between substances A and B results in the formation of product C: A + BE Figure show the dependence of the equilibrium constant for this reaction on temperature. Calculate AH, AS°, AG° and K for this reaction at 25°C? y =-3600x + 15 ž1 -1 -2 0.003 0.0035 0.004 0.0045 0.005 1/T, K 3) At 2000 K, an equilibrium constant for the dissociation of Brz is K = 0.6. Br: 2 2Br Calculate what per cent of molecular bromine is dissociated in equilibrium at T=2000 K and pressure p=1 bar. 4. Carbon monoxide and hydrogen can react to form formaldehyde: Co(g) + H2(g) SH;CO(g). A) Calculate the equilibrium constant of reaction at 298 K given that A, G (CO(g)) = -138 kJ mot' and A,G° (H, CO (g)) = -103 kJ mot' at this temperature. 5. Calculate the ratio K, / K. of the equilibrium constant in terms of partial pressures, K, and in terms of molar concentrations, Ke for the following reaction 2 NO (9) + O2 (g) 2 NO2 (g) 6. Osmotic pressure of a solution containing 1 g of a substance in IL of water is 5.00 kPa at 298K. What is molar mass of this substance? 7. What is the difference in chemical potentials of O, in two cylinders is its partial pressure in one of them is 100kPa, and in another 200 kPa? 8. Calculate activity coefficient y: for the aqueous solution containing 0.005 mol kg' K:PO, using limiting Debye Hcukel law. 9. 110 g of lithium sulfate was added to 1 L of water. What is freezing point of this solution? 10. The vapor pressure of pure water at 25 C is 23.80 Torr. When 90 g of glucose was added to 50 moles of water, the vapor pressure of water became 23.40 Torr. Calculate activity and activity coefficient of water in this solution?
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![1. A reaction between substances A and B results in the reversible formation of product C A + B C:
When 0.05 mol of A and 0.03 mol of B were mixed in l L of solvent at 25°C, and reaction reached equilibrium, remaining
concentration of A was 0.01 mol/L. What is the approximate value of the equilibrium constant for this reaction.
2. A reaction between substances A and B results in the formation of product C:
A + BE
Figure show the dependence of the equilibrium constant for this reaction on
temperature. Calculate AH, AS°, AG° and K for this reaction at 25°C?
y =-3600x + 15
ž1
-1
-2
0.003
0.0035
0.004
0.0045
0.005
1/T, K
3) At 2000 K, an equilibrium constant for the dissociation of Brz is K = 0.6.
Br: 2 2Br
Calculate what per cent of molecular bromine is dissociated in equilibrium at T=2000 K and pressure p=1 bar.
4. Carbon monoxide and hydrogen can react to form formaldehyde:
Co(g) + H2(g) SH;CO(g).
A) Calculate the equilibrium constant of reaction at 298 K given that A, G (CO(g)) = -138 kJ mot' and A,G° (H, CO
(g)) = -103 kJ mot' at this temperature.
5. Calculate the ratio K, / K. of the equilibrium constant in terms of partial pressures, K, and in terms of molar
concentrations, Ke for the following reaction
2 NO (9) + O2 (g) 2 NO2 (g)
6. Osmotic pressure of a solution containing 1 g of a substance in IL of water is 5.00 kPa at 298K. What is molar
mass of this substance?
7. What is the difference in chemical potentials of O, in two cylinders is its partial pressure in one of them is 100kPa, and in
another 200 kPa?
8. Calculate activity coefficient y: for the aqueous solution containing 0.005 mol kg' K:PO, using limiting Debye Hcukel
law.
9. 110 g of lithium sulfate was added to 1 L of water. What is freezing point of this solution?
10. The vapor pressure of pure water at 25 C is 23.80 Torr. When 90 g of glucose was added to 50 moles of water, the
vapor pressure of water became 23.40 Torr. Calculate activity and activity coefficient of water in this solution?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F079cba43-566f-4c95-9de9-a2e279b041b7%2F01545e93-83de-4490-a32f-3ed51d14bbbe%2Fzlcuemd.png&w=3840&q=75)
Transcribed Image Text:1. A reaction between substances A and B results in the reversible formation of product C A + B C:
When 0.05 mol of A and 0.03 mol of B were mixed in l L of solvent at 25°C, and reaction reached equilibrium, remaining
concentration of A was 0.01 mol/L. What is the approximate value of the equilibrium constant for this reaction.
2. A reaction between substances A and B results in the formation of product C:
A + BE
Figure show the dependence of the equilibrium constant for this reaction on
temperature. Calculate AH, AS°, AG° and K for this reaction at 25°C?
y =-3600x + 15
ž1
-1
-2
0.003
0.0035
0.004
0.0045
0.005
1/T, K
3) At 2000 K, an equilibrium constant for the dissociation of Brz is K = 0.6.
Br: 2 2Br
Calculate what per cent of molecular bromine is dissociated in equilibrium at T=2000 K and pressure p=1 bar.
4. Carbon monoxide and hydrogen can react to form formaldehyde:
Co(g) + H2(g) SH;CO(g).
A) Calculate the equilibrium constant of reaction at 298 K given that A, G (CO(g)) = -138 kJ mot' and A,G° (H, CO
(g)) = -103 kJ mot' at this temperature.
5. Calculate the ratio K, / K. of the equilibrium constant in terms of partial pressures, K, and in terms of molar
concentrations, Ke for the following reaction
2 NO (9) + O2 (g) 2 NO2 (g)
6. Osmotic pressure of a solution containing 1 g of a substance in IL of water is 5.00 kPa at 298K. What is molar
mass of this substance?
7. What is the difference in chemical potentials of O, in two cylinders is its partial pressure in one of them is 100kPa, and in
another 200 kPa?
8. Calculate activity coefficient y: for the aqueous solution containing 0.005 mol kg' K:PO, using limiting Debye Hcukel
law.
9. 110 g of lithium sulfate was added to 1 L of water. What is freezing point of this solution?
10. The vapor pressure of pure water at 25 C is 23.80 Torr. When 90 g of glucose was added to 50 moles of water, the
vapor pressure of water became 23.40 Torr. Calculate activity and activity coefficient of water in this solution?
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