# Problem: You lose 9 pounds over a 26-day period. Which of the following quantities act like a state function: the number of calories you consume, your weight, or the number of calories burned through exercise?

###### FREE Expert Solution

We have to determine which of the given quantities act like state functions when a person loses 9 pounds over a 26-day period.

The given quantities are:

1. The number of calories consumed

2. The weight

3. The number of calories burned through exercise

To solve this problem, we need to be first aware of what state functions and path functions are.

State functions are those properties whose value does not depend upon the path taken to reach that value.

The value of a state function depends only upon the initial and final state of a system.

A mnemonic to remember state functions is: PVT HUGS

These represent pressure (P), volume (V), temperature (T), enthalpy (H), internal energy (U), Gibbs free energy (G) and entropy (S).

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###### Problem Details

You lose 9 pounds over a 26-day period. Which of the following quantities act like a state function: the number of calories you consume, your weight, or the number of calories burned through exercise?