What type of defect can arise when a solid is heated ?Which physical property is affected by it and in what way ?

What type of defect can arise when a solid is heated ?Which physical p

1.	What type of defect can arise when a solid is heated ?Which physical property is affected by it and in what way ?
Answer» SOLUTION :When a solid is heated, vacancy defect is produced in the crystal. This is because on heating , some ATOMS or ions LEAVE the alttice site completely, i.e, some lattice sites become vacant. As a RESULT of this defect, the DENSITY of the substance because some atoms/ions leave the crystal completely .