Consider this reaction-energy profile for the reaction A B: (a) Is this reaction exothermic or endothermic?

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Consider this reaction-energy profile for the reaction A → B:

58 kJ/mol Energy 18 kJ/mol A Start Reaction coordinate B Finish

(a) Is this reaction exothermic or endothermic?

(b) Will the container in which this reaction is carried out feel hot or cold to the touch? Explain.

(c) What is the value of ΔErxn (include the sign)?

(d) What does the sign of ΔErxn tell you about this reaction?

(e) Which contain more energy, the reactants or the products?

(f) Does this reaction go uphill or downhill in energy?

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Introductory Chemistry Atoms First

ISBN: 9780321927118

5th Edition

Authors: Steve Russo And Michael Silver

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