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Indicate which of the following is independent of the path by which a change occurs: (a)...

Indicate which of the following is independent of the path by which a change occurs: (a) the change in potential heat evolved when a cube of sugar is oxidized to CO 1g2 and 2 energy when a book is transferred from table to shelf, (b) the H O1g2, (c) the work accomplished in burning a gallon of 2 gasoline.

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Answer #1

a) The change in potential energy when a book is transferred from table to shelf

Here, potential energy depends only on the displacement. Therefore, independent on the path

b) The heat evolved when a cube of sugar is oxidized to CO2(g) and H2O(g)

Dependent on the path. Because, Temperature and Pressure affect the reaction

c) The work accomplished in burning a gallon of gasoline.

Dependent on the path because, the released energy will depend on the ambient temperature

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