Answer the following questions

1.The process in which a solid is directly converted into vapour
2.The process in which the volume of a gas decrease
3.The process of conversion of gases state into liquid state
4.The process in which the volume of a gas increase
5.The process by which a liquid is slowly converted into vapour below it's boiling point.
6.The process of intermixing of tow gases irrespective of their densities
7.The process in which a solid melts to form a liquid
8.The property of a substance to flow​