Worksheet: State and Path Functions
In this worksheet, we will practice defining and identifying state and path functions and explaining the importance of these variables in energy calculations.
Consider a process in which a system undergoes a change from some initial thermodynamic state (1) to some final thermodynamic state (2). Suppose that the thermodynamic variables of state are well-characterized for both the initial and final states, but the path (through the variable space) between the two states is not well-characterized. Which of the following quantities associated with the change-of-state process cannot be determined without a detailed specification of path?
- AThe change in the Gibbs free energy of the system
- BThe change in the entropy of the system
- CThe change in the internal energy of the system
- DThe work done and heat exchanged during the process
The statement below is given which one of the following names?
“The enthalpy change of a chemical reaction is independent of the route taken between the initial and the final states.”
- ANewton’s Third Law
- BRaoult’s Law
- CDalton’s Law
- DHess’ Law
- EThe Law of the Conservation of Energy