> From: "David Roberson" <dlrober...@aol.com> > Sent: Thursday, April 18, 2013 7:53:22 AM > How would the nickel/hydrogen mixture be at a lower temperature than > the region that completely surrounds it? Heat would travel toward > the cooler center until it was in equilibrium. > > > Dave
In between the two there's a moving fluid (water,steam...) carrying heat away. You most likely end up with dynamic equilibrium, but the ni/h zone can be lower than the thermalization area.