Homework Answers
- The first reaction proceeds with a decrease in no. of product molecules. hence decrease in product volume. Thus, if volume is decreased, the equilibrium will shift in favour of the products, according to Le Chatelier's principle. option C)
- Exothermic reaction radiates heat. Thus cooling the reaction mixture will favour the formation of products and subsequent release of heat. option C)
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When the volume is decreased for the following reaction at equilibrium which direction will the reaction...
Consider the reaction 2H2 (g) + O2 (g) 2H2O(g) How will the equilibrium shift when hyDragen...
Consider the reaction 2H2 (g) + O2 (g) 2H2O(g) How will the equilibrium shift when hyDragen gas is removed? The reaction will shift toward both the reactants and products. The reaction will not shift toward either the products or reactants. The system will shift toward the reactants. The system will shift toward the products. Consider the exothermic reaction Fe2O3(s) + 2Al(s) Al2O3(s) + 2Fe(s) In what direction will the equilibrium shift when heat is removed? The reaction will shift toward...
9. Which of the following will have no shift in equilibrium if the volume is decreased?...
9. Which of the following will have no shift in equilibrium if the volume is decreased? 2H2O(g) + N2(g) + 2H2(g) + 2NO(g) SiO2(g) + 4HF(g) SiF4(g) + 2H2O(g) CO(g) + H2(g) C(g) + H2O(g) C6H1206(s) + 602 6CO2(g) + 6H2O(g) 10. Which of the following will shift this endothermic reaction to the REACTANT side? 302(g) 203(g) Increase the pressure Decrease the O2 gas Increase the temperature Remove the ozone, O3
Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled?...
Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled? 2CO(g) + O2(g) = 2CO2(8) H2(g) + 12(g) = 2HI(g) H2(g) + 12(s) = 2H1(2) 12(g) = 21(2) AH = -566 kJ AH = -2.70 kJ AH = +53.0 kJ AH = +36.2 kJ _ a. reactants, reactants, reactants, reactants b.reactants, reactants, products, products c. products, products, products, products d. products, products, reactants, reactants | 0 0 0 0
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...
A reaction that has a positive AH and a positive AS will be spontaneous at high...
A reaction that has a positive AH and a positive AS will be spontaneous at high temperatures spontaneous at low temperatures spontaneous at all temperatures nonspontaneous at all temperatures QUESTION 6 Which of the following statements is FALSE? Keg for a reaction written in reverse is the reciprocal of the key for the forward reaction A reaction quotient (Q) larger than Keq means that the reaction will shift toward reactants Chemical equilibrium indicates that reactants and products are present in...
1- Identify the changes in the following system at equilibrium when the temperature is suddenly decreased....
1- Identify the changes in the following system at
equilibrium when the temperature is suddenly decreased. The
reaction is endothermic. PCl5 <> PCl3+Cl2
2- A reaction profile (not to scale!) for the reaction
O2+NO2=O3+NO
3- A reaction profile (not to scale!) for the reaction
C2H5Br+H-=C2H5OH+Br-
l the Relerences to access important values if needed for this question. Identify the changes in the following system at equilibrium when the temperature is suddenly decreased The reaction is endothermic. The value of K...
Le Chateler's principle In the chart below: • Indicate the color of each solution as darker...
Le
Chateler's principle
In the chart below: • Indicate the color of each solution as darker or lighter than the control after the addition of the specified substance. • Indicate the direction the equilibrium shifted as "toward products" or "toward reactants" based on the color change. • Based on the direction of the shift, indicate the substance(s) that increased which will either be the two reactants present on the reactant side of the equilibrium equation or the complex present on...
For the following equilibrium reaction, predict the direction of the equilibrium shift by specifying if each...
For the following equilibrium reaction, predict the direction of the equilibrium shift by specifying if each stress will cause the concentration of reactants or products to increase NH3(g)+H2O(l) ⇋ NH4+(aq)+OH−(aq) Drag the appropriate stresses to their respective bins. Adding NH4+(aq) Adding NH3(g) Adding OH-(aq) Removing NH4+(aq) Removing OH-(aq) Shifts in the direction of the reactants: Shift in the direction of the products:
Consider the following reaction at equilibrium. What will happen if O2 is added to the reaction?...
Consider the following reaction at equilibrium. What will happen if O2 is added to the reaction? 4FeS2(s) + 11O2(g) <--> 2Fe2O3(s) + 8SO2(g) A) The equilibrium constant will increase. B) The equilibrium will change in the direction of the reactants. C)The equilibrium will change in the direction of the products. D)No change in equilibrium is observed. E)The equilibrium constant will decrease. 2- Identify the change that will always shift the equilibrium to the right. 2SO2(g) + O2(g) ⇋ 2SO3(g) A)...
Hello! Can someone answer this question and explain it? Thank you! 8. Consider the following equilibrium....
Hello! Can someone answer this question and explain it? Thank
you!
8. Consider the following equilibrium. The AHrxn-- 116.2 kJ/mol 2NO(g) + O2(B) 2NO2(g) If the following changes are made to the reaction, in which direction will the equilibrium shift? (a) NO is added to the reaction flask. (b) O2 is removed from the reaction flask (C) NO2 is removed from the reaction flask (d) The volume of the flask is doubled (e) The temperature is increased
Consider the reaction 2H2 (g) + O2 (g) 2H2O(g) How will the equilibrium shift when hyDragen gas is removed? The reaction will shift toward both the reactants and products. The reaction will not shift toward either the products or reactants. The system will shift toward the reactants. The system will shift toward the products. Consider the exothermic reaction Fe2O3(s) + 2Al(s) Al2O3(s) + 2Fe(s) In what direction will the equilibrium shift when heat is removed? The reaction will shift toward...
9. Which of the following will have no shift in equilibrium if the volume is decreased? 2H2O(g) + N2(g) + 2H2(g) + 2NO(g) SiO2(g) + 4HF(g) SiF4(g) + 2H2O(g) CO(g) + H2(g) C(g) + H2O(g) C6H1206(s) + 602 6CO2(g) + 6H2O(g) 10. Which of the following will shift this endothermic reaction to the REACTANT side? 302(g) 203(g) Increase the pressure Decrease the O2 gas Increase the temperature Remove the ozone, O3
Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled? 2CO(g) + O2(g) = 2CO2(8) H2(g) + 12(g) = 2HI(g) H2(g) + 12(s) = 2H1(2) 12(g) = 21(2) AH = -566 kJ AH = -2.70 kJ AH = +53.0 kJ AH = +36.2 kJ _ a. reactants, reactants, reactants, reactants b.reactants, reactants, products, products c. products, products, products, products d. products, products, reactants, reactants | 0 0 0 0
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...
A reaction that has a positive AH and a positive AS will be spontaneous at high temperatures spontaneous at low temperatures spontaneous at all temperatures nonspontaneous at all temperatures QUESTION 6 Which of the following statements is FALSE? Keg for a reaction written in reverse is the reciprocal of the key for the forward reaction A reaction quotient (Q) larger than Keq means that the reaction will shift toward reactants Chemical equilibrium indicates that reactants and products are present in...
1- Identify the changes in the following system at
equilibrium when the temperature is suddenly decreased. The
reaction is endothermic. PCl5 <> PCl3+Cl2
2- A reaction profile (not to scale!) for the reaction
O2+NO2=O3+NO
3- A reaction profile (not to scale!) for the reaction
C2H5Br+H-=C2H5OH+Br-
l the Relerences to access important values if needed for this question. Identify the changes in the following system at equilibrium when the temperature is suddenly decreased The reaction is endothermic. The value of K...
Le
Chateler's principle
In the chart below: • Indicate the color of each solution as darker or lighter than the control after the addition of the specified substance. • Indicate the direction the equilibrium shifted as "toward products" or "toward reactants" based on the color change. • Based on the direction of the shift, indicate the substance(s) that increased which will either be the two reactants present on the reactant side of the equilibrium equation or the complex present on...
Hello! Can someone answer this question and explain it? Thank
you!
8. Consider the following equilibrium. The AHrxn-- 116.2 kJ/mol 2NO(g) + O2(B) 2NO2(g) If the following changes are made to the reaction, in which direction will the equilibrium shift? (a) NO is added to the reaction flask. (b) O2 is removed from the reaction flask (C) NO2 is removed from the reaction flask (d) The volume of the flask is doubled (e) The temperature is increased
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