trusktr
Reputation
Top tag
Next privilege 250 Rep.
 Dec 7 comment Why does a gas get hot when suddenly compressed? What is happening at the molecular level? I think this merits an entirely different question: Do gas molecules in a bigger volume with move at the same speed as gas molecules of the same type in a smaller volume when both volumes have the same temperature? Dec 7 comment Why does a gas get hot when suddenly compressed? What is happening at the molecular level? Also, lets imagine that the wall only moves when there are no collisions happening, and that the wall stops for an instant when a ball needs to bounce off it, thus not changing the speed of the ball which loses no energy to the collision. So, now, the volume is small and all the balls have the same speed as before. Now, lets imagine we allow for energy to be lost to collisions. This is where I imagine that the increased temperature comes from because now more balls hit the wall, releasing energy at a higher rate due to more collisions than before. Is this the case? Dec 7 comment Why does a gas get hot when suddenly compressed? What is happening at the molecular level? Ok, so question: once the system has cooled off in temperature and reached equilibrium with the surroundings, is the average speed of each molecule the same as it was before being compressed? Dec 7 answered Why does a ping pong ball change direction when I spin it on a table? Dec 7 asked Why does a gas get hot when suddenly compressed? What is happening at the molecular level? Nov 29 revised What does the differential of $d_s\sin(\theta) = m\lambda$ help us see, with respect to waves through diffraction gratings? added 13 characters in body; edited title Nov 29 comment What does the differential of $d_s\sin(\theta) = m\lambda$ help us see, with respect to waves through diffraction gratings? In this new light (better verbage), I'd rather just use the original equation (not its derivative) since I already know what the equation is and don't have to worry about finding any sort of anti-derivative. Nov 29 awarded Supporter Nov 29 comment What does the differential of $d_s\sin(\theta) = m\lambda$ help us see, with respect to waves through diffraction gratings? Thanks. Nice info. This is what I realized when I replaced the word "differential" with "derivative" which makes SO much more sense! I couldn't understand what they meant by the second equation being the differential of the first. It makes more sense to say that the second equation is the derivative of the first and can be used to find small differentials of the values in the first equation. Nov 29 comment What does the differential of $d_s\sin(\theta) = m\lambda$ help us see, with respect to waves through diffraction gratings? Aaah true, so "diffraction of waves through small slits." Nov 28 awarded Student Nov 28 asked What does the differential of $d_s\sin(\theta) = m\lambda$ help us see, with respect to waves through diffraction gratings? Feb 27 comment What is the name and value of the constant that relates to electrons and that coincidentally has the same exact value as the speed of light? hahaha.. well too bad my reputation can't go below 1. ;) Feb 27 awarded Editor Feb 27 revised What is the name and value of the constant that relates to electrons and that coincidentally has the same exact value as the speed of light? added 180 characters in body Feb 27 comment What is the name and value of the constant that relates to electrons and that coincidentally has the same exact value as the speed of light? lol.. but isn't there ONLY one such constant? I just can't recal what it's called... but it's very interesting! Feb 27 asked What is the name and value of the constant that relates to electrons and that coincidentally has the same exact value as the speed of light?