Diagrams like the one below are used to represent exothermic reactions. For instance, consider burning charcoal (which almost entirely pure element carbon). A=carbon and B=oxygen, when they react they form C=carbon dioxide. A little chemistry vocab: does substance C in the diagram represent a reactant or the product? Activation Energy A+B Reaction Progression Energy

Diagrams like the one below are used to represent exothermic reactions. For instance, consider burning charcoal (which almost entirely pure element carbon). A=carbon and B=oxygen, when they react they form C=carbon dioxide. A little chemistry vocab: does substance C in the diagram represent a reactant or the product? Activation Energy A+B Reaction Progression Energy

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter5: Ground Rules Of Metabolism

Section: Chapter Questions

Problem 15SA

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In which of the following conditions is the Gibbs free energy negative? O reaction is at equilibrium process is spontaneous O reaction is exothermic O process is not spontaneous
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In the diagram, notice the y-coordinate (energy) of A + B; also notice how C is at a lower y-coordinate. Their difference is the amount of energy during the exothermic reaction. A+B Activation Energy Reaction Progression Energy
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TERMS BOX Endothermic Exothermic Catabolic Terms that describe this reaction Spontaneous Terms that describe this reaction Anabolic AG = positive Non-Spontaneous For each reaction below USE FIVE TERMS from the box above that describe the reaction AG = negative Produces Energy Uses Energy 6 CO₂ + H₂O → C6H12O6 + O₂
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