June 2015 Chemistry Regents #57-59

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Questions 51-53 Questions 54-56 Questions 57-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-75  Questions 76-79  Questions 80-82  Questions 83-85

 

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Questions 57-59

 

 

Base your answers to questions 57 and 59 on the information below and on your knowledge of chemistry.

The equation below represents an equilibrium system of SO2(g), O2(g), and SO3(g). The reaction can be catalyzed by vanadium or platinum.

2SO2(g)+ O2(g) <--> 2SO3(g) + Energy 

57 Compare the rates of the forward and reverse reactions at equilibrium.[1]

Answer-->  Rates are equal  (the same)

Wrong answer ==>rates are constant

58 State how the equilibrium shifts when SO3(g) is removed from the system. [1]  

Answer--> shift right    (towards the products)

59 A potential energy diagram for the forward reaction is shown in your answer booklet. On this diagram, draw a dashed line to show how the potential energy changes when the reaction occurs by the catalyzed pathway. [1]

 

Link to answer to question 59

on to Questions 60-61		 

Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Questions 51-53 Questions 54-56 Questions 57-59 Questions 60-61 Questions 62-65 Questions 66-68 Questions 69-72 Questions 73-75  Questions 76-79  Questions 80-82  Questions 83-85

 

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