Shaktal
Reputation
482
Next privilege 500 Rep.
Access review queues
 Dec 9 awarded Custodian Dec 9 awarded Necromancer Dec 9 reviewed Approve Pion production in proton-proton collision Nov 1 awarded Popular Question Aug 10 accepted Event times in different reference frames in the context of Special Relativity Aug 9 asked Event times in different reference frames in the context of Special Relativity Jul 31 accepted Understanding the difference between co- and contra-variant vectors Jun 10 asked How to calculate magnetic flux density in gap Jun 10 revised Gauss law for gravitational field added 907 characters in body Jun 10 answered Gauss law for gravitational field Jun 3 asked Image charges for currents? Apr 22 accepted Distinguishing between prepared and unprepared states Stern-Gerlach experiment Apr 20 asked How to understand Density of States with dispersion relation Mar 16 asked Distinguishing between prepared and unprepared states Stern-Gerlach experiment Mar 15 comment Definition of charges Well using your definition it does have an excess of electrons; there are no other counterparts to neutralize it so there is an excess of exactly 1 electron? Mar 8 awarded Notable Question Jan 27 asked Trouble getting the matrix representation of a 4-state Hamiltonian Jan 13 comment Average kinetic energy of molecules hitting a surface @JonCuster It's something I've seen in both Thermodynamics textbooks and in my lecturers notes; would you mind proving its invalidity? Jan 13 comment Average kinetic energy of molecules hitting a surface @CarlWitthoft It is a fact that I am given, the question as is identically: "Using the results of Q3.3, show that for a gas obeying the Maxwellian distribution, the average energy of all the molecules is $(3/2)k_{B}T$, but the average energy of those hitting the surface is $2k_{B}T$" Where in Q3.3 I showed that the speed distribution was defined as: $$\widetilde{f}(v)\:\mathrm{d}v = \frac{4v^{2}}{\sqrt{\pi}v_{th}}\exp\left(-\frac{v^{2}}{v_{th}^{2}}\right)\: \mathrm{d}v$$ And calculated that generally: $$\langle v^{n} \rangle = \frac{2v_{th}^{n}\Gamma(\frac{3+n}{2})}{\sqrt{\pi}}$$ Jan 12 asked Average kinetic energy of molecules hitting a surface