Suppose a pair of chemical compounds A and B can react in two different ways: A+B C Reaction 1 gives product C. A+B D Reaction 2 gives product D. The following facts are known about the two reactions: Both reactions are exothermic, but the heat of reaction of Reaction #1 is larger. If a reaction vessel is charged ("filled") with A and B, then at first D is produced faster than C. Use these facts to sketch a qualitative reaction energy diagram for both reactions. Note: because these sketches are only qualitative, the energies don't have to be exact. They only have to have the right relationship to each other. For example, if one energy is less than another, that fact should be clear in your sketch. energy A+B Reaction 1 reaction coordinate energy A+B Reaction 2 reaction coordinate S

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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.132QP
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Suppose a pair of chemical compounds A and B can react in two different ways:
A+B C Reaction 1 gives product C.
Reaction 2 gives product D..
A+B D
The following facts are known about the two reactions:
Both reactions are exothermic, but the heat of reaction of Reaction #1 is larger.
If a reaction vessel is charged ("filled") with A and B, then at first D is produced faster than C.
Use these facts to sketch a qualitative reaction energy diagram for both reactions.
Note: because these sketches are only qualitative, the energies don't have to be exact. They only have to
have the right relationship to each other. For example, if one energy is less than another, that fact should be
clear in your sketch.
energy
A+B
Reaction 1
reaction coordinate
energy
Reaction 2
A+B
reaction coordinate
S
Transcribed Image Text:Suppose a pair of chemical compounds A and B can react in two different ways: A+B C Reaction 1 gives product C. Reaction 2 gives product D.. A+B D The following facts are known about the two reactions: Both reactions are exothermic, but the heat of reaction of Reaction #1 is larger. If a reaction vessel is charged ("filled") with A and B, then at first D is produced faster than C. Use these facts to sketch a qualitative reaction energy diagram for both reactions. Note: because these sketches are only qualitative, the energies don't have to be exact. They only have to have the right relationship to each other. For example, if one energy is less than another, that fact should be clear in your sketch. energy A+B Reaction 1 reaction coordinate energy Reaction 2 A+B reaction coordinate S
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