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Question

In thermodynamics, heat and work are:

A
Intensive thermodynamic state variables
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B
Extensive thermodynamic state variables
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C
Path functions
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D
Point functions
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Solution

The correct option is C Path functions
Heat and work are path functions. Heat and work depend on the path taken to reach the final state from initial state. Intensive and extensive properties only apply to physical properties that are a function of state, therefore heat/work are neither intensive nor extensive. Hence, option (c) is correct.

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