Re: Methane vs. hydrogen, etc.

Chris, I tend to think you're correct.  Liquid H2 has a density much
lower than that of CH4.  CH4 molecules are not much bigger than H2
molecules, but contain twice the number of hydrogren atoms.  Also, the
forces that cause the molecules to liquify may be stronger in the CH4,
so the CH4 molecules are more closely packed.  I think this is likely;
doesn't CH4 liquify at a higher temperature than H2? Wouldn't more polar
molecules do even better, getting real friendly with each other (oops
they just solidified)?

Sorry, my chemistry's a little rusty too.

James