Homework Answers
The reaction 'c' goes most nearly to completion.
Reason: The value of equilibrium constant (Kc) is very high for the reaction 'c' such as 1016, hence it goes most nearly to completion.
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9. Assuming that the system is at equilibrium, which reaction goes most nearly to completion? a....
3. Assuming that the system is at equilibrium, (1) which of the following reaction goes essentially...
3. Assuming that the system is at equilibrium, (1) which of the following reaction goes essentially to completion? easily detectable? (1) are (3) (2) which does not take place to a significant extent? (3) which equilibria (2) 2 BrCl(g) Ke 7.0 Kc 1.3 x 1069 Kc 0.154 Ke 4x 10-18 2 Cl2(g) Br2(g) + a. CO2(8) + O2(g) b. C(graphite) 2 CH4(8) 3 H2(8) C2H2(e) с. 2 Brig) d. Br2(g) Ke 1.0 x 10-95 F2(g) Hа() 2 HF(g) е.
O KINETICS AND EQUILIBRIUM Understanding that no reaction goes to 100% completion Hydrogen chloride and oxygen...
O KINETICS AND EQUILIBRIUM Understanding that no reaction goes to 100% completion Hydrogen chloride and oxygen react to form water and chlorine, like this: 4 HCl(9)+02(9) ► 2H2O(g)+2C12(9) Use this chemical equation to answer the questions in the table below. Suppose 185. mmol of HCl and 46.3 mmol of O2 are added to an empty flask. How much H,O will be in the flask at equilibrium? None. Some, but less than 92.5 mmol. 92.5 mmol. More than 92.5 mmol. None....
Please answer all six thanks 1) The equilibrium constant for the following reaction is 2.90×10-2 at...
Please answer all six thanks 1) The equilibrium constant for the following reaction is 2.90×10-2 at 1.15×103K. 2SO3(g) ------------------->2SO2(g) + O2(g) If an equilibrium mixture of the three gases in a 17.3 L container at 1.15×103K contains 0.437 mol of SO3(g) and 0.422 mol of SO2, the equilibrium concentration of O2 is M. 2) A student ran the following reaction in the laboratory at 1100 K: 2SO3(g) -------------------->2SO2(g) + O2(g) When she introduced 7.74×10-2 moles of SO3(g) into a 1.00 liter...
3. a) Write the equilibrium equation for the following reaction N2(g) + 3 H2(g) <-> 2...
3. a) Write the equilibrium equation for the following reaction N2(g) + 3 H2(g) <-> 2 NH3(g) b) An equilibrium mixture at 500 K has the following concentrations: [N2] = 3.0 x 10-2 M [H2] = 3.7 x 10-2 M [NH3] = 1.6 x 10-2 M, calculate the equilibrium constant, Kc c) Calculate the Kp for this reaction d) Is the equilibrium mixture mostly reactants or products? e) Does this reaction go to nearly 100% completion? Explain f) If Qc...
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...
3) Which of the following compounds is the most reactive dienophile in a Diels-Alder reaction with...
3) Which of the following compounds is the most reactive dienophile in a Diels-Alder reaction with 1,3-butadiene? A) CH2CHOCH3 B) CH2CHCHO C) CH3CHCHCH3 D) (CH3)2CCH2 E) CH2CH2 5) Which of the following fails to form benzoic acid when heated with chromic acid? A) 1-phenylethanol B) 2-phenylethanol C) 2-phenylheptane D) 2-methyl-2-phenylheptane E) 1-phenylheptanol 11) How can the following synthesis be carried out? A) HCOOH; HNO3/H2SO4 B) CH3Cl/AlCl3; HNO3/H2SO4; H2CrO4, heat C) CH3Cl/AlCl3; H2CrO4, heat; HNO3/H2SO4 D) HNO3/H2SO4; CH3Cl/AlCl3; H2CrO4, heat E)...
Q(1) During a chemical reaction, what defines when the concentrations of the reactants and products reach...
Q(1) During a chemical reaction, what defines when the concentrations of the reactants and products reach a constant level? A) Elementary process B) Rate constant C) Reversible reaction D) Equilibrium E) Rate law Q(2) Which is the correct equilibrium constant expression for the following reaction? FeO(s) + H2(g) - Fe(s) + H2O(g) A) Ke = [H2O] / [H2] B) Ke=[Fe][H2O] / [Fe2O3] [H2] C) Ke=[Fe) (H20] / [Fe2O3] D) Kc = [Hz] / [H2O] E) Ke= [Fe2O3] [H2] / [Fe][H2O]...
Question 6 1 pts Which of the following reactions is a standard formation reaction (i.e. АHræn...
Question 6 1 pts Which of the following reactions is a standard formation reaction (i.e. АHræn = AH) at T = 298 K? O 2 Fe (s) + 1.5 O2() → Fe2O3(s) O N2(1) + 2 O2(1) ► N204(1) O CO(g) + 2H2(g) + CH3OH(1) O C(s, graphite) + H2(g) + O2(g) → C6H1206(s) O Cl2(g) + H2(g) →2 HCl(g) Question 4 1 pts A sample of 1.71 moles of a substance was burned in a constant pressure calorimeter. The...
2. How is the equilibrium-constant expression (Kc) for the reaction: 2NO(a) = N2() + Ke=0.145; related...
2. How is the equilibrium-constant expression (Kc) for the reaction: 2NO(a) = N2() + Ke=0.145; related to the following reaction? O2 (a) N2(a) + O2(a) = 2NO(a) K=.............. (b) 4NOQ = 2Nz () + 2O2(g) Kos......... (c) NO) 1/2 N2(0)+ 1/2O2(0) K3= +++ (d) 1/2 N2(a) + 1/2O2(a) = NO) Ke=.............. 3. Given Kc or ko for the following reactions, what is the value of Koor K? (a) l2(g) + Cl2(a) = 2ICIOX Kc = 2.0 x105 at 25°C (b)...
1) Which reaction will shift to the left in response to a decrease in volume? A)...
1) Which reaction will shift to the left in response to a decrease in volume? A) 2 SO3 (8) 2 SO2(g) + O2(8) B) N2(g) + 3H2(g) + 2NH3(g) C) 2H1 (8) H2(g) + 12 (8) D) 4 Fe (8) +32(g) 2 Fe2O3 (s) E) H2 (8) + Cl2(g) 2 HCl (g) Explain 2) Based on Le Châtelier's principle, increasing pressure at constant temperature in the following reaction will not change the concentrations of reactants and products. A) N2 (8)...
3. Assuming that the system is at equilibrium, (1) which of the following reaction goes essentially to completion? easily detectable? (1) are (3) (2) which does not take place to a significant extent? (3) which equilibria (2) 2 BrCl(g) Ke 7.0 Kc 1.3 x 1069 Kc 0.154 Ke 4x 10-18 2 Cl2(g) Br2(g) + a. CO2(8) + O2(g) b. C(graphite) 2 CH4(8) 3 H2(8) C2H2(e) с. 2 Brig) d. Br2(g) Ke 1.0 x 10-95 F2(g) Hа() 2 HF(g) е.
O KINETICS AND EQUILIBRIUM Understanding that no reaction goes to 100% completion Hydrogen chloride and oxygen react to form water and chlorine, like this: 4 HCl(9)+02(9) ► 2H2O(g)+2C12(9) Use this chemical equation to answer the questions in the table below. Suppose 185. mmol of HCl and 46.3 mmol of O2 are added to an empty flask. How much H,O will be in the flask at equilibrium? None. Some, but less than 92.5 mmol. 92.5 mmol. More than 92.5 mmol. None....
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...
Q(1) During a chemical reaction, what defines when the concentrations of the reactants and products reach a constant level? A) Elementary process B) Rate constant C) Reversible reaction D) Equilibrium E) Rate law Q(2) Which is the correct equilibrium constant expression for the following reaction? FeO(s) + H2(g) - Fe(s) + H2O(g) A) Ke = [H2O] / [H2] B) Ke=[Fe][H2O] / [Fe2O3] [H2] C) Ke=[Fe) (H20] / [Fe2O3] D) Kc = [Hz] / [H2O] E) Ke= [Fe2O3] [H2] / [Fe][H2O]...
Question 6 1 pts Which of the following reactions is a standard formation reaction (i.e. АHræn = AH) at T = 298 K? O 2 Fe (s) + 1.5 O2() → Fe2O3(s) O N2(1) + 2 O2(1) ► N204(1) O CO(g) + 2H2(g) + CH3OH(1) O C(s, graphite) + H2(g) + O2(g) → C6H1206(s) O Cl2(g) + H2(g) →2 HCl(g) Question 4 1 pts A sample of 1.71 moles of a substance was burned in a constant pressure calorimeter. The...
2. How is the equilibrium-constant expression (Kc) for the reaction: 2NO(a) = N2() + Ke=0.145; related to the following reaction? O2 (a) N2(a) + O2(a) = 2NO(a) K=.............. (b) 4NOQ = 2Nz () + 2O2(g) Kos......... (c) NO) 1/2 N2(0)+ 1/2O2(0) K3= +++ (d) 1/2 N2(a) + 1/2O2(a) = NO) Ke=.............. 3. Given Kc or ko for the following reactions, what is the value of Koor K? (a) l2(g) + Cl2(a) = 2ICIOX Kc = 2.0 x105 at 25°C (b)...
1) Which reaction will shift to the left in response to a decrease in volume? A) 2 SO3 (8) 2 SO2(g) + O2(8) B) N2(g) + 3H2(g) + 2NH3(g) C) 2H1 (8) H2(g) + 12 (8) D) 4 Fe (8) +32(g) 2 Fe2O3 (s) E) H2 (8) + Cl2(g) 2 HCl (g) Explain 2) Based on Le Châtelier's principle, increasing pressure at constant temperature in the following reaction will not change the concentrations of reactants and products. A) N2 (8)...
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