Thermochemistry

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Armani Dodson 1A
Posts: 24
Joined: Fri Jul 22, 2016 3:00 am

Thermochemistry

Postby Armani Dodson 1A » Fri Jan 13, 2017 11:15 pm

Why does the path taken not matter for state properties?

Vivian Nguyen 2A
Posts: 21
Joined: Wed Sep 21, 2016 2:58 pm

Re: Thermochemistry

Postby Vivian Nguyen 2A » Sat Jan 14, 2017 9:11 am

According to the textbook, state properties depend only on the current state of the system. Therefore, if the system is changed from one state to another, the change in a state property is independent of how that change was brought about. We looked at the mountain example in class that highlighted altitude as a state property. Although the path taken by one group was much longer than the other to travel from point A to point B, the change in altitude is the same. We also used another example of altitude from city A to city B to understand the use of enthalpy as a state function, where the standard reaction enthalpy can be calculated by subtracting standard enthalpy of formation of all reactants from standard enthalpy of formation of all products.


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