chuinhen Posted October 23, 2006 Posted October 23, 2006 according to the phase diagram : the melting curve of the helium is parallel to the y-axis thats mean that the melting point of the helium is not affected by the pressure !!! Wy is it so ??
insane_alien Posted October 23, 2006 Posted October 23, 2006 the melting point of helium IS affected by pressure. for instance, it WILL NOT freeze if its at standard pressure. no matter how cold. just because you cannot percieve non parrallel ness does not mean it is parallel. EDIT: thought i'd add some linkage http://www.fluidmech.net/msc/super/super-f.htm < yah looks real parrallel
Darkblade48 Posted October 23, 2006 Posted October 23, 2006 I'm just curious, chuinhen, did you mean that the curve is (near) parallel to the X-axis? In the link that insane_alien has linked, the curve is definitely not parallel (or near parallel) to the Y-axis
insane_alien Posted October 23, 2006 Posted October 23, 2006 well, the phase diagram is over a ridiculously small pressure/temperature range compared to most substances but thats is only because it is meant to be a useful diagram.
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now