CHM 220H Tutorial information
Weekly one hour CHM 220 tutorials begin the week of September 20th.
The CHM 220 tutorial groups have been created from the ROSI TUT sections. To find your
assigned tutorial group code either consult the class list posted next
How to evaluate partial derivatives in thermodynamics
Entropy changes: since entropy is a state function we can write it as a function
of any other state functions; e.g., S(T,V), S(T,P), S(U,V),
Why new state functions are useful:
Suppose we want to cons
Second law of thermodynamics
(Chapter 5)
Lots of ways to state it. Here are three:
Entropy: the entropy is a state function, its infinitesimal change is given by the
heat absorbed by the system in a reversible processes divided by the
temperature of the h
Heat
We saw that work had the units of energy and that we could change the
energy of the system by doing work on it. This changed the state of the
system.
We can also change the energy of the system without doing work. This also
changes the state of the s
Chapters 2 and 3
Thermodynamics some background
Partition universe into system and surroundings by a boundary
system can be isolated, open, closed
open system
boundary
surrounding
closed system,
isolated , no
energy flow.
Thermodynamic state of a system
CHM220
Jeremy Schofield
Lash Miller Laboratories, Rm. 420E
[email protected]
Administrator
Ms. H. Ohorodnyk
Lash Miller Laboratories, Rm. 219
[email protected]
416-978-4376
416-978-3604
You are responsible for material taught in lectures.