First Law of Thermodynamics Video Lessons

Concept

# Problem: You may want to reference (Pages 167 - 172) Section 5.2 while completing this problem.Indicate which of the following is independent of the path by which a change occurs.(a) the change in potential energy when a book is transferred from table to shelf(b) the heat evolved when a cube of sugar is oxidized to CO2(g) and H2O(g)(c) the work accomplished in burning a gallon of gasoline.

###### FREE Expert Solution

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

$\overline{)\mathbf{PE}\mathbf{=}\mathbf{mgh}}$

• potential energy → depends only on the position of the object

independent of the path by which a change occurs

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

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###### Problem Details

You may want to reference (Pages 167 - 172) Section 5.2 while completing this problem.

Indicate which of the following is independent of the path by which a change occurs.
(a) the change in potential energy when a book is transferred from table to shelf
(b) the heat evolved when a cube of sugar is oxidized to CO2(g) and H2O(g)
(c) the work accomplished in burning a gallon of gasoline.