I have no idea as to how to begin to do these. If you could be so kind and help
ID: 543442 • Letter: I
Question
I have no idea as to how to begin to do these. If you could be so kind and help me understand how to do parts A through F, that would be great!
Activation Energy and Catalysts Activation energy Learning Goal The activation energy of a reaction is the difference in energy between the reactants and the activated complex. Activation energy is always a positive number To help you understand how to interpret potential energy diagrams. Internal energy change 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) The internal energy change, E of a reaction is the difference in energy between the reactants and the products. E may be positive or negative depending upon whether the reaction is endothermic or exothermic. To ensure that you always get the correct sign for As, use the following equation products reactauts Enthalpy change The enthalpy change, , of a reaction is often nearly equal to the internal energy change, E, for a reaction because at constant pressure the pressure-volume work is small. For problems in this item involving potential energy diagrams, you can assume that H is equal to E unless you are told otherwise. Figure 1 Part A Uncatalyzed Reaction What is the value of the activation energy of the uncatalyzed reaction? Express your answer to three significant figures and include the appropriate units. 400 300 Hints reactants 100 activation energyValue Units Reaction coordinate Submit My Answers Give UpExplanation / Answer
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 reverse = energy of activated complex - energy of product
= 400 KJ - 100 KJ
= 300 KJ
Answer: 300 KJ
D)
enthalpy change = energy of reactant - energy of product
= 225 KJ - 100 KJ
= 125 KJ
Answer: 125 KJ
you have to repeat the same thing for other figure which you have not provided in the question