Question

what happens when gypsum is heated at 393 k

Answer 1

Hey mate

Here is ur ans

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gypsum is calcium sulphate dihydrate on heating it is converted into

plaster of paris

which is calcium sulphate hemihydrate and it is used for mouldings, CaSO4.2H2O + heat = CaSO4.1/2 H2O or (CaSO4)2.2H2O

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Hope it helps u ^_^☺☺☺

Answer 2

hey here is ur answer

when gypsum is heated at 393K temperature , it loses some molecule of water and converted into plaster of peris.