Why inner core is solid?

Answer 1

As we go inside the Earth, the temperature increases, but so does the confining pressure. As the pressure increases, the melting point of the materials increases as they become harder and denser. The outer core is liquid due to the fact the melting point hasnt increased above its temperature. At the boundary of outer and inner core, the pressure becomes high enough to raise the melting point of the materials above their temperature. So it is solid

The inner core is solid because the main constituent of inner core is iron. In the inner core the pressure is nearly 330-360 giga pascal and temperature is nearly 5900K. at these pressure the melting point of iron increases upto an extent that it can be in solid state even at that high temperatures. Hence, the inner core of earth is in solid state.

Answer 2

The inner core of the Earth, its innermost hottest part as detected by seismological studies, is a primarily solid ballabout 1,220 km (760 mi) in radius, or about 70% that of the Moon. It is believed to consist of an iron-nickel alloy, and may have a temperature similar to the Sun's surface, approximately 5700 K (5430 °C).

Answer 3

The inner core is solid due to the immense pressure of the overlying layers pushing down on it, which prevents it from melting despite the high temperatures. Additionally, the inner core is composed mostly of iron and nickel, which have high melting points and would remain solid even under extreme heat.

Answer 4

The inner core is solid, but it is made of metal, not rock.

Answer 5

The innner cord is soild because the inner core is made out of nickel and iron. Still, this white hot liquid can be soild on the outside.

Answer 6

Yes, the inner core is solid.

Answer 7

Yes, the inner core is solid

Answer 8

The inner core is solid.

Answer 9

yes