Homework Answers
It is an example for Le Chatlier's principle which states that if we apply any stress on the equilibrium, then ewuiequilib shifts in a direction to cancel that stress.
A. Increase in pressure shift the equilibrium towards less no of molecules, towards reactants side, left side (reverse direction)
B. Addition of NaHSO3, shifts the equilibrium towards right side, forward direction to decrease the added amount of NaHSO3 by consuming it to Na2SO3, SO2 and H2O.
C. Since the reaction is exothermic, occurs at low temperatures. Hence on deceasing the temperature, equilibrium shifts towards right side, forward direction.
D. Catalyst has no effect on equilibrium direction. Hence no change.
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b. The following reaction is exothermic. 2NaHSO3(s) = Na2SO3(s) + H2O(g) + SO2(g) T The equilibrium reaction is enc...
The following reaction is exothermic. Which change will shift the equilibrium to the right? 2 SO2(g)...
The following reaction is exothermic. Which change will shift the equilibrium to the right? 2 SO2(g) 02(8)2 S03(g) O A) Adding SO3 O B) Increase volume O c) Increase the temperature OD) Adding catalyst 0 E) Increase pressure
3. Consider the following reaction at equilibrium. + C(s) + H2O (g) + Heat CO (g)...
3. Consider the following reaction at equilibrium. + C(s) + H2O (g) + Heat CO (g) +H, (g) a. Is this reaction endothermic or exothermic? (1 point) 2 b. In which direction (right or left) will the equilibrium shift if the following stresses are applied to the reaction at equilibrium? (4 points) i. Remove heat ii. Add CO (g) iii. Remove H20 (g) iv. Add H2 (g)
More Equilibrium: Please write equilibrium expressions for the following reactions: 1. i. 2 SO2 (g) +...
More Equilibrium: Please write equilibrium expressions for the following reactions: 1. i. 2 SO2 (g) + O2 (g) 2 SO3 (g) il. NH4NOs (s) N2O (g) +2 H20 (g) i CaCO3 (s) + CaO (s) + CO2 (g) iv. HNO2 (aq) +H2O (I) HaO* (aq) + NO2 (aq) 2. Predict which way the equilibrium will shift for each of the following changes: CO (g) + H2 (g) C (s) H2O (g) + heat i. increase [H2O] ii. increase [C0] iii....
Question 7 (5 points) Consider the equilibrium below: CO(g) + H2O(g) = CO2(g) + H2(g) Kc...
Question 7 (5 points) Consider the equilibrium below: CO(g) + H2O(g) = CO2(g) + H2(g) Kc = 0.0611 at 2000 K If Pco and PH20 are both initially 2.95 atm, what will be the equilibrium partial pressure of H2? Express your answer in decimal format to 3 significant figures. Your Answer: N. Answer Coal, which is primarily carbon, can be converted to natural gas (primarily methane, CH4) by the following exothermic reaction: + C(s) 2H2(g) CH4(g) Which of the following...
The reaction SO2(g)+2H2S(g) ⇌ 3 S(s)+2H2O(g) is the basis of a suggested method for removal of SO2, a pollutant that...
The reaction SO2(g)+2H2S(g) ⇌ 3 S(s)+2H2O(g) is the basis of a suggested method for removal of SO2, a pollutant that irritates airways causing coughing, from power-plant stack gases. The values below may be helpful when answering questions about the process. Substance ΔG∘f (kJ/mol) ΔH∘f (kJ/mol) H2O(g) −228.6 −241.8 H2O(l) −237.1 −285.8 SO2(g) −300.4 −296.9 SO3(g) −370.4 −395.2 H2S(g) −33.01 −20.17 S(s) 0 0 PART A: Calculate the equilibrium constant Kp for the reaction at a temperature of 298 K. Express...
1. Consider the following reaction at equilibrium. 4 FeS2(s) + 11 O2(g) ⇌ 2 Fe2O3(s) + 8 SO2(g)...
1. Consider the following reaction at equilibrium. 4 FeS2(s) + 11 O2(g) ⇌ 2 Fe2O3(s) + 8 SO2(g) a. What will happen if the pressure increased? b. What will happen if the concentration of FeS2(s) is decreased? 2) The following reaction is exothermic: What direction will the equilibrium shift if the following changes are made? 2 SO2(g) + O2(g) ⇌ 2 SO3(g) a) Raising the temperature b) Adding SO3 c) Removing O2 d) Decreasing the volume
The following reaction occurs within an erupting volcano: 2 H2S(g) + SO2(g) 3 S(s) + 2...
The following reaction occurs within an erupting volcano: 2 H2S(g) + SO2(g) 3 S(s) + 2 H2O(g) At 650 K, an equilibrium mixture contained H2S, SO2, and H2O at partial pressures of 1.17 atm, 1.07 atm, and 0.83 atm respectively. Calculate Kp at 650 K for the reaction
The following reaction is exothermic. Which change will shift the equilibrium to the right? 2 SO2...
The following reaction is exothermic. Which change will shift the equilibrium to the right? 2 SO2 (g) + O2 (g) = 2 So, (9) o Adding So, Decreasing the volume of the reaction flask Removing O2 Heating the reaction QUESTION 11 A positive AGⓇ for a reaction implies The reaction is never spontaneous The products predominate at equilibrium The reaction is always spontaneous The reactants predominate at equilibrium ОО QUESTION 12 Which of the following is TRUE regarding AG and...
Consider the reaction, which is exothermic as written, 2H2(g) + X2(g) =2H2X(g). Which of the following...
Consider the reaction, which is exothermic as written, 2H2(g) + X2(g) =2H2X(g). Which of the following changes would result in the production of more H2X(g)? I. adding H2(g) II. removing H2(g) III. reducing the volume of the container IV. removing X2(g) V. increasing the temperature VI. increasing the volume of the container VII. adding X2(8) VIII. reducing the temperature IX adding a suitable catalyst a) 1, II, VI, VIII Ob) I, III, VII, VIII OC) 1, III, VII, VIII, IX...
Consider the reaction, which is exothermic as written, 2H2(g) + X2(8)=2H2X(g). Which of the following changes...
Consider the reaction, which is exothermic as written, 2H2(g) + X2(8)=2H2X(g). Which of the following changes would result in the production of more H2X(g)? 1. adding H2(8) II. removing H2(8) III. reducing the volume of the container IV. removing X2(8) V. increasing the temperature VI. increasing the volume of the container VII. adding X2(g) VIII. reducing the temperature IX. adding a suitable catalyst
The following reaction is exothermic. Which change will shift the equilibrium to the right? 2 SO2(g) 02(8)2 S03(g) O A) Adding SO3 O B) Increase volume O c) Increase the temperature OD) Adding catalyst 0 E) Increase pressure
3. Consider the following reaction at equilibrium. + C(s) + H2O (g) + Heat CO (g) +H, (g) a. Is this reaction endothermic or exothermic? (1 point) 2 b. In which direction (right or left) will the equilibrium shift if the following stresses are applied to the reaction at equilibrium? (4 points) i. Remove heat ii. Add CO (g) iii. Remove H20 (g) iv. Add H2 (g)
More Equilibrium: Please write equilibrium expressions for the following reactions: 1. i. 2 SO2 (g) + O2 (g) 2 SO3 (g) il. NH4NOs (s) N2O (g) +2 H20 (g) i CaCO3 (s) + CaO (s) + CO2 (g) iv. HNO2 (aq) +H2O (I) HaO* (aq) + NO2 (aq) 2. Predict which way the equilibrium will shift for each of the following changes: CO (g) + H2 (g) C (s) H2O (g) + heat i. increase [H2O] ii. increase [C0] iii....
Question 7 (5 points) Consider the equilibrium below: CO(g) + H2O(g) = CO2(g) + H2(g) Kc = 0.0611 at 2000 K If Pco and PH20 are both initially 2.95 atm, what will be the equilibrium partial pressure of H2? Express your answer in decimal format to 3 significant figures. Your Answer: N. Answer Coal, which is primarily carbon, can be converted to natural gas (primarily methane, CH4) by the following exothermic reaction: + C(s) 2H2(g) CH4(g) Which of the following...
The following reaction is exothermic. Which change will shift the equilibrium to the right? 2 SO2 (g) + O2 (g) = 2 So, (9) o Adding So, Decreasing the volume of the reaction flask Removing O2 Heating the reaction QUESTION 11 A positive AGⓇ for a reaction implies The reaction is never spontaneous The products predominate at equilibrium The reaction is always spontaneous The reactants predominate at equilibrium ОО QUESTION 12 Which of the following is TRUE regarding AG and...
Consider the reaction, which is exothermic as written, 2H2(g) + X2(g) =2H2X(g). Which of the following changes would result in the production of more H2X(g)? I. adding H2(g) II. removing H2(g) III. reducing the volume of the container IV. removing X2(g) V. increasing the temperature VI. increasing the volume of the container VII. adding X2(8) VIII. reducing the temperature IX adding a suitable catalyst a) 1, II, VI, VIII Ob) I, III, VII, VIII OC) 1, III, VII, VIII, IX...
Consider the reaction, which is exothermic as written, 2H2(g) + X2(8)=2H2X(g). Which of the following changes would result in the production of more H2X(g)? 1. adding H2(8) II. removing H2(8) III. reducing the volume of the container IV. removing X2(8) V. increasing the temperature VI. increasing the volume of the container VII. adding X2(g) VIII. reducing the temperature IX. adding a suitable catalyst
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