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3. Assuming that the system is at equilibrium, (1) which of the following reaction goes essentially...
9. Assuming that the system is at equilibrium, which reaction goes most nearly to completion? a....
9. Assuming that the system is at equilibrium, which reaction goes most nearly to completion? a. CH3CH2CH2CH3(g) + CH3CH(CH3)2(g) Kc = 2.5 b. C(graphite) + H2(g) CHA) Kc = 27.5 c. K. - 1.0 x 1016 2 C(graphite) + O2(g) 2 CO() Kc = 1.88 x 10-15 d. 2 Cl2(g) 4 HCl(g) + O2(g) + H2O(g) e FeO(s) + COQ - Kc = 0.403 Fers) + CO2(e)
Which of the following statements is/are correct? 1. ∆H° for the reaction C(diamond) + O2(g) →...
Which of the following statements is/are correct? 1. ∆H° for the reaction C(diamond) + O2(g) → CO2(g) is the enthalpy of combustion of diamond. 2. ∆H° for the reaction C(graphite) + 1/2 O2(g) → CO(g) is the standard enthalpy of formation (∆Hf) of CO(g). 3. ∆H° for the reaction C(graphite) → C(diamond) is the standard enthalpy of formation (∆Hf) of diamond. A. all B. 2 only C. 1 and 2 only D. 1 and 3 only E. 2 and 3...
Chemical equilibrium is not concerned with which of the following? Involves the rate of the reaction....
Chemical equilibrium is not concerned with which of the following? Involves the rate of the reaction. Governs concentration of reactants and products. Smaller amounts of products are made than the theoretical yield predicts. Equilibria are dynamic. Calculate Kc for the following reaction at 25 °C, N2(g) + 3 H2(g) = 2 NH3(g) Kp = 5.8 x 105 Consider the following reactions: COCl2(g) 5 CO(g) + Cl2(g) Kp = 8.8 x 10-12 Kp = 2.4 x 10-8 C(s) + CO2(g) S...
1. (6 points) Write the equilibrium constant expression ke for the following reaction: 3 F(b) +...
1. (6 points) Write the equilibrium constant expression ke for the following reaction: 3 F(b) + Ca(e) = 2 CIF(e) 2. (6 points) Write the equilibrium constant expression Kc for the following reaction: Fe2O3(s) + 3 CO(g) = 2 Fel) + 3 CO2(B) 3. (6 points) Consider the following chemical reaction and the concentrations for each substance: H2O(g) + CH2(g) = CO(g) + 3H2(g) Kc = 4.7 at 1400 K concentration 1.00 M 0.500 M 2.35 M 1.00 M Under...
1) 2) 3) 4) The equilibrium constant for the gas phase reaction 2803 (g) = 2802...
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The equilibrium constant for the gas phase reaction 2803 (g) = 2802 (g) + O2 (g) is Keg = 7.1 x 102 at 999 K. At equilibrium,_ O only reactants are present O roughly equal amounts of products and reactants are present products predominate only products are present reactants predominate QUESTION 20 The rate law of a reaction is rate = k[X]-. The units of the rate constant are O mol L-15-2 OL mol-15-1 O mol2...
1. Write the equilibrium constant expression for the reaction N2 (g) + 3 H2 (g) D ...
1. Write the equilibrium constant expression for the reaction N2 (g) + 3 H2 (g) D 2 NH3 (g) 2. For the reaction in question 1, delta H = -92 kj*mol^-1 Predict the direction of shift of the equilibrium of the above reaction caused by adding N2 at constant volume and temperature removing H2 at constant volume and temperature adding N2 at constant volume and temperature raising the temperature at constant total pressure 3. Hydrogen fluoride (HF) is a weak...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) =...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) = CO2(g) + C(s) A. [CO][C]/[CO] B. K [CO] C. [CO] / [CO2) D. [CO]/[CO] E. 2[CO] /[CO][C] In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Châtelier's principle? ООООО A. 2N, () + 0,02N,0 () B. N.O. (g) 2NO, (g) C. N2(g) + 3H2(g)2NH3 (9) D. N2 (9) + 202...
Write the expressions for Kp for the following reactions: 1. a) 2NH3(g) + Co2(g) N2CH40(s) +...
Write the expressions for Kp for the following reactions: 1. a) 2NH3(g) + Co2(g) N2CH40(s) + H20 (I) b) CuO (s) + H2(g) Cu(l)+H20 (g) 2. At room temperature, a 1.5 L flask contains 3.0 moles of Cl, 0.5 mole of NOCI, and 4.0x10 mole of NO. Calculate Ke at this temperature for the following reaction: 2NO (g) + Cl2(g) 2NOCİ (g) 0.00245 M, does this represent a system at M, [No] 0.2 M and [Ch] If [NOCI] 2.0x 10...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
1) 2) 3) A proposed mechanism for the reaction 2NO(g) +2H2(g) → N2(g) + 2H2O(g): Step...
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A proposed mechanism for the reaction 2NO(g) +2H2(g) → N2(g) + 2H2O(g): Step 1: 2NO(g) + N2O2(g) (very fast, reversible) Step 2: N2O2(g) + H2(g) N20(g) + H20(g) (slow) Step 3: N2O(g) + H2(g) →N2(g) +H2O(g) (fast) What is the rate law for the overall reaction? Ok[NO2 Ok[NO]2[H212 O k[NO]2[H2] Ok[N20][H2] k[NO]1/2[H2] 2NO(g) +Cl2 (g) → NOCI (8) Experiment concentration of NO (M) 0.09 0.045 0.045 concentration of Cl2(M) Rate (M/s) 0.01 3.40 x 10-4 8.50 x...
9. Assuming that the system is at equilibrium, which reaction goes most nearly to completion? a. CH3CH2CH2CH3(g) + CH3CH(CH3)2(g) Kc = 2.5 b. C(graphite) + H2(g) CHA) Kc = 27.5 c. K. - 1.0 x 1016 2 C(graphite) + O2(g) 2 CO() Kc = 1.88 x 10-15 d. 2 Cl2(g) 4 HCl(g) + O2(g) + H2O(g) e FeO(s) + COQ - Kc = 0.403 Fers) + CO2(e)
Chemical equilibrium is not concerned with which of the following? Involves the rate of the reaction. Governs concentration of reactants and products. Smaller amounts of products are made than the theoretical yield predicts. Equilibria are dynamic. Calculate Kc for the following reaction at 25 °C, N2(g) + 3 H2(g) = 2 NH3(g) Kp = 5.8 x 105 Consider the following reactions: COCl2(g) 5 CO(g) + Cl2(g) Kp = 8.8 x 10-12 Kp = 2.4 x 10-8 C(s) + CO2(g) S...
1. (6 points) Write the equilibrium constant expression ke for the following reaction: 3 F(b) + Ca(e) = 2 CIF(e) 2. (6 points) Write the equilibrium constant expression Kc for the following reaction: Fe2O3(s) + 3 CO(g) = 2 Fel) + 3 CO2(B) 3. (6 points) Consider the following chemical reaction and the concentrations for each substance: H2O(g) + CH2(g) = CO(g) + 3H2(g) Kc = 4.7 at 1400 K concentration 1.00 M 0.500 M 2.35 M 1.00 M Under...
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The equilibrium constant for the gas phase reaction 2803 (g) = 2802 (g) + O2 (g) is Keg = 7.1 x 102 at 999 K. At equilibrium,_ O only reactants are present O roughly equal amounts of products and reactants are present products predominate only products are present reactants predominate QUESTION 20 The rate law of a reaction is rate = k[X]-. The units of the rate constant are O mol L-15-2 OL mol-15-1 O mol2...
Which of the following expressions is the correct equilibrium-constant expression for the reaction below? 200(g) = CO2(g) + C(s) A. [CO][C]/[CO] B. K [CO] C. [CO] / [CO2) D. [CO]/[CO] E. 2[CO] /[CO][C] In which of the following reactions would increasing pressure at constant temperature not change the concentrations of reactants and products, based on Le Châtelier's principle? ООООО A. 2N, () + 0,02N,0 () B. N.O. (g) 2NO, (g) C. N2(g) + 3H2(g)2NH3 (9) D. N2 (9) + 202...
Write the expressions for Kp for the following reactions: 1. a) 2NH3(g) + Co2(g) N2CH40(s) + H20 (I) b) CuO (s) + H2(g) Cu(l)+H20 (g) 2. At room temperature, a 1.5 L flask contains 3.0 moles of Cl, 0.5 mole of NOCI, and 4.0x10 mole of NO. Calculate Ke at this temperature for the following reaction: 2NO (g) + Cl2(g) 2NOCİ (g) 0.00245 M, does this represent a system at M, [No] 0.2 M and [Ch] If [NOCI] 2.0x 10...
1. Which of the following is true for a chemical reaction at equilibrium? only the forward reaction stops only the reverse reaction stops both the forward and reverse reactions stop the rate constants for the forward and reverse reactions are equal the rates of the forward and reverse reactions are equal 2. A chemical equilibrium may be established by starting a reaction with reactants only. d. any quantities of reactants and products. products only. e. all the above equal quantities...
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A proposed mechanism for the reaction 2NO(g) +2H2(g) → N2(g) + 2H2O(g): Step 1: 2NO(g) + N2O2(g) (very fast, reversible) Step 2: N2O2(g) + H2(g) N20(g) + H20(g) (slow) Step 3: N2O(g) + H2(g) →N2(g) +H2O(g) (fast) What is the rate law for the overall reaction? Ok[NO2 Ok[NO]2[H212 O k[NO]2[H2] Ok[N20][H2] k[NO]1/2[H2] 2NO(g) +Cl2 (g) → NOCI (8) Experiment concentration of NO (M) 0.09 0.045 0.045 concentration of Cl2(M) Rate (M/s) 0.01 3.40 x 10-4 8.50 x...
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