To help you understand how to interpret potential energy diagrams. The graphs sh

Question

To help you understand how to interpret potential energy diagrams. The graphs shown here are called potential energy diagrams. They show the potential energy of a system as it changes from reactants to products. The first graph shows the uncatalyzed reaction (Figure 1); the second graph shows the catalyzed reaction (Figure 2). What is the value of the activation energy of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. What is the value of the enthalpy change of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. What is the value of the activation energy of the uncatalyzed reaction in reverse? Express your answer as an integer and include the appropriate units.

Explanation / Answer

partA) from the potential digrams

the activation energy = 400 - 225 = 175 Kj

partb)

the enthalphy change = 225-100 = 125Kj

part C)

the activation energy for the reverse reaction = 400 - 100 = 300 Kj

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