Tagged Questions
1
vote
1answer
56 views
Pressure change due to fan removing air from a non-airtight room
The following problem occurred to me today:
Suppose a $100\mathrm{cfm}$ fan is pushing air out of a large room which is airtight except for a $10 \mathrm{cm}^2$ hole. The air pressure outside the ...
4
votes
2answers
162 views
What's the classical limit of the pressure of the ultrarelativistic Bose gas
The pressure for the ultrarelativistic Bose gas is
$$p~=~U/(3V) ~\propto~ (kT)^4/(hc)^3.$$
It looks to me like it diverges for $h \to 0$. Looking at the derivation, it diverges because $h$ is the ...
5
votes
3answers
523 views
Why is Avogadro's hypothesis true?
Why is the number of molecules in a standard volume of gas at a standard temperature and pressure a constant, regardless of the molecule's composition or weight?
Let's say I have a closed box full of ...
