Homework Answers
Answer:-
3 only
3. the concentration of B(g) will increase
because the given reaction is endothermic. So on increasing the temperature, it will move in tge forward direction as according to Le Chatelier principle.
The decay of radioactive cadmium follows first-order kinetics. A sample of radioactive cadmium has a half...
The decay of radioactive cadmium follows first-order kinetics. A sample of radioactive cadmium has a half life of 15 days. If you have a sample that originally weighed 40 g and later weighs 2.5 g, how much time elapsed between the initial and final masses? Given the following reaction: 2A (g) ↔ B (g) + C (g) ∆H˚ = +27 kJ K = 3.2 x 10-4 Which of the following would be true if the temperature were increased from 25˚C...
7 Consider the following reaction at 298 K: NH3(g) +HCI(g)NH4CI(s) Using the thermochemical data at 298 K given below (a) Determine the AH for the reaction. (2 marks) (b) Determine the AG for the...
7 Consider the following reaction at 298 K: NH3(g) +HCI(g)NH4CI(s) Using the thermochemical data at 298 K given below (a) Determine the AH for the reaction. (2 marks) (b) Determine the AG for the reaction and comment on its value. (3 marks) (c) Determine the maximum work done available in the reaction. (3 marks) An equilibrium mixture, consisting of 0.5 atm of NHy(), 0.5 atm of HCKg) and excessive of NH Cl(s), is enclosed in a container at 298 K...
1. What is AG at 25 °C (298 K) for the reaction below? Show your answer...
1. What is AG at 25 °C (298 K) for the reaction below? Show your answer with four significant figures Cs) + 026) CO268 AH=-393.5 kJ/mol AS=0.0029 kJ/mol K 2. A certain reaction has AH = 10.3 kJ/mol and AS = 42.7J/K-mol. Calculate AG in kJ/mol at 338 K. Show your answer with four significant figures 3. Consider the following potential energy diagram that represents two different reactions. Which reaction is spontaneous? Which reaction is faster? Reaction A Reaction B...
3. At 350 K, the equilibrium reaction 2A(g) + 130 kJ = B(g) + 2C(g) K...
3. At 350 K, the equilibrium reaction 2A(g) + 130 kJ = B(g) + 2C(g) K = 1.4 x10 a) What effect does adding gas B to the equilibrium mixture have? b) What effect does placing the equilibrium mixture in a hot water bath have? c) What effect does raising the pressure by reducing the volume of the container have? A. Mixture cools down. B. Equilibrium shifts right. C. Concentration of gas A increases. D. Concentration of gas C increases....
10. Given the following table: Compound NO: (g) N:O (g) AHP (J mol) AGP (J mol) 51.84 33.85 9.66 98.29 For t...
10. Given the following table: Compound NO: (g) N:O (g) AHP (J mol) AGP (J mol) 51.84 33.85 9.66 98.29 For the reaction: N:Oa (g) eo 2NO: (g) (a) Use the information in the Table to calculate AG for the reaction (b) Use the information in the Table to calculate AH" for the reaction (c) Calculate K, at 25 C. (d) Calculate K, at 1600 °C. (Assume AH to be temperature independent) (e) Calculate the degree of dissociation, a, of...
COCl2 (g) ⇌ CO (g) + Cl2 (g) K = 8.3 x 10-4 at 360 °C;...
COCl2 (g) ⇌ CO (g) + Cl2 (g) K = 8.3 x 10-4 at 360 °C; ΔHo rxn = 109.5 kJ/mol Initially, 2.0 moles of CoCl2 were placed in an empty 1.0 L container at 360 °C. When the system reached equilibrium, what was the equilibrium concentration of Cl2? b. After the system reached equilibrium, 0.5 mol of CO were added into the container and the temperature was increased to 500 °C. When the system re-established equilibrium, what was the...
2. For the reaction: A(g) +B(g) = 2C(g) K = 1.0 x 10-5 at 25°C When...
2. For the reaction: A(g) +B(g) = 2C(g) K = 1.0 x 10-5 at 25°C When equilibrium was reached at 25°C, the equilibrium concentrations of the reactant gases were: [A] = 2.5 x10-2M [B] = 2.0 x 10- M Calculate the equilibrium concentration of the product gas C? 3. At a certain temperature the reaction has an equilibrium constant of 0.400. CO(g) + H2O(g) = CO2(g) + H2(g) When 1.50 mol of carbon dioxide gas and 1.50 mol of hydrogen...
For the reaction H2 (g) + Br2 (g) → 2 HBr (g) AH° = - 104...
For the reaction H2 (g) + Br2 (g) → 2 HBr (g) AH° = - 104 kJ Which of the following statements are correct? 1) Increasing the temperature will make the equilibrium ratio [HBr] / [H2] decrease. 2) At equilibrium the specific rate constant for the forward reaction must equal the specific rate constant for the reverse reaction. 3) At equilibrium the rate of the forward reaction will equal the rate of the reverse reaction. 4) A catalyst that increases...
Consider the following reaction at 25 °C: 5 SO3(g) + 2 NH3(g) → 2 NO(g) +...
Consider the following reaction at 25 °C: 5 SO3(g) + 2 NH3(g) → 2 NO(g) + 5 SO2(g) + 3 H2O(g) If AH° = 42.4 kJ./mol and AS° = 562.3 J/ mol•K, estimate the temperature at which this reaction would be at equilibrium assuming that enthalpy and entropy are independent of temperature.
6.) The solubility of CO2 (g) in water is 3.2 x 102 M at 25.0 °C...
6.) The solubility of CO2 (g) in water is 3.2 x 102 M at 25.0 °C and 1.0 atm pressure. a.) What is the Henry's Law constant for CO2 (g)? Cg = k P, ; Cg = concentration in M; k = Henry's Law constant in mol L atm*'; P. = pressure in atm. 3.2 x 10-2 M=k (1.0 atm) (3.2 x 10-2 M)/(1.0 atm) = k = 3.2 x 10-2 M/atm = 3.2 x 10-2 mol L atm" b.)...
7 Consider the following reaction at 298 K: NH3(g) +HCI(g)NH4CI(s) Using the thermochemical data at 298 K given below (a) Determine the AH for the reaction. (2 marks) (b) Determine the AG for the reaction and comment on its value. (3 marks) (c) Determine the maximum work done available in the reaction. (3 marks) An equilibrium mixture, consisting of 0.5 atm of NHy(), 0.5 atm of HCKg) and excessive of NH Cl(s), is enclosed in a container at 298 K...
1. What is AG at 25 °C (298 K) for the reaction below? Show your answer with four significant figures Cs) + 026) CO268 AH=-393.5 kJ/mol AS=0.0029 kJ/mol K 2. A certain reaction has AH = 10.3 kJ/mol and AS = 42.7J/K-mol. Calculate AG in kJ/mol at 338 K. Show your answer with four significant figures 3. Consider the following potential energy diagram that represents two different reactions. Which reaction is spontaneous? Which reaction is faster? Reaction A Reaction B...
3. At 350 K, the equilibrium reaction 2A(g) + 130 kJ = B(g) + 2C(g) K = 1.4 x10 a) What effect does adding gas B to the equilibrium mixture have? b) What effect does placing the equilibrium mixture in a hot water bath have? c) What effect does raising the pressure by reducing the volume of the container have? A. Mixture cools down. B. Equilibrium shifts right. C. Concentration of gas A increases. D. Concentration of gas C increases....
10. Given the following table: Compound NO: (g) N:O (g) AHP (J mol) AGP (J mol) 51.84 33.85 9.66 98.29 For the reaction: N:Oa (g) eo 2NO: (g) (a) Use the information in the Table to calculate AG for the reaction (b) Use the information in the Table to calculate AH" for the reaction (c) Calculate K, at 25 C. (d) Calculate K, at 1600 °C. (Assume AH to be temperature independent) (e) Calculate the degree of dissociation, a, of...
2. For the reaction: A(g) +B(g) = 2C(g) K = 1.0 x 10-5 at 25°C When equilibrium was reached at 25°C, the equilibrium concentrations of the reactant gases were: [A] = 2.5 x10-2M [B] = 2.0 x 10- M Calculate the equilibrium concentration of the product gas C? 3. At a certain temperature the reaction has an equilibrium constant of 0.400. CO(g) + H2O(g) = CO2(g) + H2(g) When 1.50 mol of carbon dioxide gas and 1.50 mol of hydrogen...
For the reaction H2 (g) + Br2 (g) → 2 HBr (g) AH° = - 104 kJ Which of the following statements are correct? 1) Increasing the temperature will make the equilibrium ratio [HBr] / [H2] decrease. 2) At equilibrium the specific rate constant for the forward reaction must equal the specific rate constant for the reverse reaction. 3) At equilibrium the rate of the forward reaction will equal the rate of the reverse reaction. 4) A catalyst that increases...
Consider the following reaction at 25 °C: 5 SO3(g) + 2 NH3(g) → 2 NO(g) + 5 SO2(g) + 3 H2O(g) If AH° = 42.4 kJ./mol and AS° = 562.3 J/ mol•K, estimate the temperature at which this reaction would be at equilibrium assuming that enthalpy and entropy are independent of temperature.
6.) The solubility of CO2 (g) in water is 3.2 x 102 M at 25.0 °C and 1.0 atm pressure. a.) What is the Henry's Law constant for CO2 (g)? Cg = k P, ; Cg = concentration in M; k = Henry's Law constant in mol L atm*'; P. = pressure in atm. 3.2 x 10-2 M=k (1.0 atm) (3.2 x 10-2 M)/(1.0 atm) = k = 3.2 x 10-2 M/atm = 3.2 x 10-2 mol L atm" b.)...
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