How molten metal changes to a solid?

Answer 1

Molten metal will solidify as its temperature decreases; that is, by cooling. Almost all metals are solid at room temperature. However, a metal like Mercury is normally a liquid, so changing mercury into a solid requires cooling to -40 degrees C.

Answer 2

WE KNOW THAT...

"When an object is heated then its inter-molecular distance increases."

{The inter-molecular distance of liquid is more than that of solid}

When metal is heated then the inter-molecular distance of metal increases and converts into molten metal and then this molten metal when cooled down then the inter-molecular distance decreases and then converts into solid.

Answer 3

WE KNOW THAT...

"When an object is heated then its inter-molecular distance increases."

{The inter-molecular distance of liquid is more than that of solid}

When metal is heated then the inter-molecular distance of metal increases and converts into molten metal and then this molten metal when cooled down then the inter-molecular distance decreases and then converts into solid.

Answer 4

When enough thermal (heat) energy is removed from the molten sample, to the state

where the macroscopic measurement of temperature decreases to values of less than,

for example, 660° C for aluminum, 961° C for pure silver, 1,770° C for platinum,

negative 38.9° C for mercury, 1,063° C for 24K gold, 1,084° C for copper, etc., the mean

intermolecular separation and mean molecular kinetic energy are both reduced to the

critical value where a distinct change of state takes place. The molten sample, which

formerly had no definite shape, takes on a definite shape in the manner of 'solids'.

Erudite, bourgeois observers refer to this process as 'solidification', whereas the less

sophisticated onlooker more commonly describes it as 'freezing'. The same identical

process may be observed at any time in the case of a sample of H2O that has been

cooled to a uniform temperature below 32° F (0° C).

Answer 5

It turns to a solid when it cools down

Answer 6

By cooling, normally with water.

Answer 7

by freezing

Answer 8

It cools.