Question

Define - coefficient of linear expansion, coefficient of superficial expansion and coefficient of cubical expansion of solids. State their units.

Answer 1

The coefficient cubical expansion isdefined as an increase in volume perunit original volume at 00c per unit rise in temperature.

Answer 2

Hii Abhradeep,

◆ Coefficient of linear expansion -

- Rate of increase in length of a material per degree rise in temperature at constant pressure is called coefficient of linear expansion.

- Unit of coefficient of linear expansion is per degree Celsius (/℃).

◆ Coefficient of superficial expansion -

- Rate of increase in surafce area of a material per degree rise in temperature at constant pressure is called coefficient of superficial expansion.

- Unit of coefficient of superficial expansion is per degree Celsius (/℃).

◆ Coefficient of cubic expansion -

- Rate of increase in volume of a material per degree rise in temperature at constant pressure is called coefficient of cubic expansion.

- Unit of coefficient of cubical expansion is per degree Celsius (/℃).

Hope this helped. Thanks for asking..