Last time I checked most solids and liquids were mostly "non-compressible", at least in our macro world. Liquid Water density changes only 4% over a wide range
On Monday, January 21, 2013, Giovanni Santostasi wrote: > In fact, it is mostly hydrogen and helium. > This to show that you can have iron at the core of earth with higher > density that what iron has at atmospheric pressure. The density is > determined by the pressure and temperature not just the type of material. > When we quote densities of materials most often we mean at atmospheric > pressure. > Giovanni > > > On Mon, Jan 21, 2013 at 2:57 PM, ChemE Stewart <[email protected]> wrote: > > Works for me, I never said it was iron > > > On Monday, January 21, 2013, Giovanni Santostasi wrote: > > The sun core has a density 20 times higher than iron at atmospheric > pressure. > Giovanni > > > On Mon, Jan 21, 2013 at 2:54 PM, ChemE Stewart <[email protected]> wrote: > > I have not calculated it yet, but I think it is a black hole with enough > entropic gravitational pull to trigger fusion around it. > > Could you run that calc for me? > > > On Monday, January 21, 2013, Giovanni Santostasi wrote: > > Chem, what is the density of the core of the sun? > Plasma can be squeezed to ultra high density under high pressure. > Giovanni > > On Mon, Jan 21, 2013 at 2:47 PM, ChemE Stewart <[email protected]> wrote: > > I was thinking a plasma was less dense. Maybe you meant a Bose Einstein > condensate or something similar? > > *Plasma* is similar to a gas, in which a certain proportion of its > particles are ionized. Gases contain molecules bonded with molecular > bonds.In stars or in case of high temperatures, the molecular bonds of > gases are dissociated & then due to high temperature it suffers further > heating <http://wiki.answers.com/Q/Is_plasma_more_dense_than_gas#> & > finally forms so called plasma. They have density about [1 part./meter cube > -1032 part./meter > cube<http://wiki.answers.com/Q/Is_plasma_more_dense_than_gas#> > ]. > > > > > On Mon, Jan 21, 2013 at 3:40 PM, Giovanni Santostasi < > [email protected]> wrote: > > It is denser because the iron is in a plasma form under a lot of pressure, > so it can be compacted. > Giovanni > > > > On Mon, Jan 21, 2013 at 2:26 PM, ChemE Stewart <[email protected]> wrote: > > From You > > "Gravity was dominant force. People do simulations of this stuff and they > work" > >
