Lecture 3 examples and problems university of illinois. The classical form of the first law of thermodynamics is the following equation du dq dw. This tutorial contains a few thermodynamics practice problems for you to work on. Compare the work done by the system in going from ito a w ia to that done by the system in going from ato f w af. Solution 1 consider the two paths, ia, and afconnecting points i and f on the pvdiagram. Isochoric thermodynamics processes problems and solutions. Thermodynamics, pv diagrams, internal energy, heat, work. N p,t g is related to the isothermalisobaric partition function according to see table 31. Isobaric thermodynamics processes problems and solutions scribd.
It shows you how to solve problems associated with pv diagrams, internal energy, heat, and work. Those terms are pretty hard to understand just from the names, so lets break them down one at a time. This physics video tutorial explains the concept of the first law of thermodynamics. The following graph shows a vt graph for isobaric processes at two different pressures. If the system as a whole is at rest, so that the bulk mechanical energy due to translational or rotational motion is zero, then the. Piston in water bath conceptual workenergy problem. Expansion and compression of a gas isobaric, isochoric.
Using the results of the solution of the previous problem, one finds. Pv diagram below shows an ideal gas undergoes an iso choric process. The first law of thermodynamics work and heat are two ways of transfering energy between a system and the environment, causing the systems energy to change. Calculate the work is done by the gas in the process ab. A w ia w af b w ia w af c w ia isobaric process and the first law.
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