Question

explain superficial expansion with examples​

Answer 1

Answer:

Area or superficial Expansion: Superficial expansion is defined as the increase in surface area of the solid on heating. If you consider at 00C area of a solid is A0 then its area at t0c is given by: A0(l+βt). Unit of β is 0C-1 or K-1. Where β is known as the coefficient of superficial expansion.

Answer 2

Answer:

Expansion in area of a Laminar surface due to heating is known as superficial expansion. The coefficient of superficial expansion is defined as the ratio of increase in area to its original area for every degree increase in temperature.