Isomers are molecules that have the same chemical formula, Ask an Expert

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Isomers are molecules that have the same chemical formula but different arrangements of atoms, as shown here for two isomers of pentane, C5H12.

(a) Do you expect a significant difference in the enthalpy of combustion of the two isomers? Explain.

(b) Which isomer do you expect to have the higher standard molar entropy? Explain.

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