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Part A What is the value of the activation energy of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units
Part A What is the value of the activation energy of the uncatalyzed reaction?
Express your answer to three significant figures and include the appropriate units.
Part B
What is the value of the enthalpy change of the uncatalyzed reaction?
Express your answer to three significant figures and include the appropriate units.
Part C
What is the value of the activation energy of the uncatalyzed reaction in reverse?
Part D
What is the value of the enthalpy change of the uncatalyzed reaction in reverse?
Express your answer to three significant figures and include the appropriate units.
Part E
How does the presence of a catalyst affect the activation energy of a reaction?
How does the presence of a catalyst affect the activation energy of a reaction?
| A catalyst increases the activation energy of a reaction. |
| A catalyst decreases the activation energy of a reaction. |
| A catalyst does not affect the activation energy of a reaction. |
| It depends on whether you are talking about the forward or the reverse reaction. |
Part F
How does the presence of a catalyst affect the enthalpy change of a reaction?
How does the presence of a catalyst affect the enthalpy change of a reaction?
| A catalyst increases the enthalpy change of a reaction. |
| A catalyst decreases the enthalpy change of a reaction. |
| A catalyst does not affect the enthalpy change of a reaction. |
| It depends on whether you are talking about the forward or the reverse reaction. |
400 300 g 200 100 Uncatalyzed Reaction Reaction coordinate products
Expert Solution
A)
Activation energy = energy of activated complex - energy of reactant
= 400 KJ - 225 KJ
= 175 KJ
Answer: 175 KJ
B)
Enthalpy change = energy of product - energy of reactant
= 100 KJ - 225 KJ
= -125 KJ
Answer: -125 KJ
C)
Activation energy of reverse reaction = energy of activated complex - energy of product
= 400 KJ - 100 KJ
= 300 KJ
Answer: 300 KJ
D)
Enthalpy change of reverse reaction = energy of reactant - energy of product
= 225 KJ - 100 KJ
= 125 KJ
Answer: 125 KJ
E)
Catalyst has decreased the Activation energy
Answer: option 2
F)
Catalyst do not effect the Enthalpy change
Answer: option 3
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