Question

What happens when gypsum is heated to 390k?​

Answer 1

When gypsum is heated at 390K then it loses its water molecules and converts into calcium sulphate hemihydrate (CaSO4 .1/2H2O) also known as plaster of Paris.

Mark as brainliest.

Answer 2

It forms plaster of paris on heating.

Explanation:

Gypsum is a mineral composed of calcium sulfate dihydrate, with the chemical formula $CaSO_4.2H_2O$.

On heating gypsum at 390 K, it loses water molecules and becomes calcium sulphate hemihydrate $CaSO_4.\frac{1}{2}H_2O$.

Calcium sulphate hemihydrate $CaSO_4.\frac{1}{2}H_2O$ is called as plaster of paris used in construction and repairing fractures.

$CaSO_4.2H_2O\overset {\Delta}\rightarrow CaSO_4.\frac{1}{2}H_2O$.

Learn more about gypsum

https://brainly.in/question/2180936

#learnwithbrainly