Question

A thick coat of plaster of paris paste is applied over the bandage on a fractured bone. the paste becomes hard on drying to keep the fractured bone immbolized. canthe change in POP be reversed? Justify your answer

Answer 1

When water is added to plaster of Paris (POP), it changes to another substance and on drying it hardens. Once the POP has hardened, its shape cannot be changed. Therefore, the change in POP cannot be reversed.