Tagged Questions
3
votes
3answers
184 views
Understanding mathematically the free expansion process of an ideal gas
I'm trying to understand mathematically that for the free expansion of an ideal gas the internal energy $E$ just depends on temperature $T$ and not volume $V$.
In the free expansion process the ...
2
votes
3answers
2k views
How to deduce E=(3/2)kT?
It says in my course notes that a particle has so-called "kinetic energy"
$E=\frac{3}{2}kT=\frac{1}{2}mv^²$
Where does this formula come from? What is k?
2
votes
2answers
783 views
Calculating work done on an ideal gas
I am trying to calculate the work done on an ideal gas in a piston set up where temperature is kept constant. I am given the volume, pressure and temperature.
I know from Boyle's law that volume is ...
0
votes
1answer
666 views
Work on ideal gas by piston
Imagine a thermally insulated cylinder containing a ideal gas closed at one end by a piston.
If the piston is moved rapidly, so the gas expands from $V_i$ to $V_f$.
The expanding gas will do work ...
3
votes
3answers
220 views
Simple question about a gas in a box with a moving wall
David Albert is a philosopher of Science at Columbia. His book "Time and Chance" includes this example (p 36).
A gas is confined on one side of a box with a removable wall. "Draw the wall out, ...
