Question

Show the decomposition of gypsum to P.O.P and back interconversion of P.O.P to gypsum

Answer 1

Answer:

The decomposition of gypsum to Plaster of Paris is as follows:-

373K

CaSO

4

.2H

2

O

△

CaSO

4

.1/2H

2

O

Plaster of Paris is prepared by decomposing gypsum at 373K.

Interconversion of Plaster of Paris into gypsum is as follows:-

CaSO

4

.1/2H

2

O+1

2

1

H

2

O→CaSO

4

.2H

2

O