Yes it is called freezing and belive it or not, any liquid can freeze even lava and molten iron. Just give it enough time.
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Under conditions of standard temperature and pressure convection is not possible in the solid state of matter.However under extreme conditions (e.g. the high temperature and pressure in the earth's mantle) convection is not only possible in the solid state of matter, but happens all the time just as in the liquid and gas states of matter but much slower.
It depends on what the temperature and the pressure is.
It is solid because there is so much pressure that it makes it really dense.
Gasoline is liquid at standard temperature and pressure.
solid
in low pressure environments it is possible for a solid to change to a liquid
Yes.
No. But by lowering its temperature or the pressure, its phase can be changed.
the temperture and pressure at witch a soild becomes a liquid
Liquid changes to gas when pressure is reduced and temperature is increased. When pressure on liquid is reduced, the inter molecular space increases and temperature increases the kinetic energy of the atoms. This changes liquid to gaseous state
Magnesium is a solid at normal temperature and pressure.
Gasoline is liquid at standard temperature and pressure.
Potassium can be solid, liquid or gas. At normal room temperature and atmospheric pressure it is a solid. Above 63.3oC it is a liquid and above 760oC it is a gas.
The higher the pressure, the more likely a liquid will turn into a solid. So, high pressure (like the Earth's core) can turn a core solid.
Yes, at room temperature and pressure calcium is a solid.
The inner core is solid due to the high pressure. Even at such a temperature, the pressure is so great that the material can only exist as a solid. The outer core is liquid as it is at a huge temperature, yet does not have the pressure to force it into solid form.
Under conditions of standard temperature and pressure convection is not possible in the solid state of matter.However under extreme conditions (e.g. the high temperature and pressure in the earth's mantle) convection is not only possible in the solid state of matter, but happens all the time just as in the liquid and gas states of matter but much slower.