Question

write the defination of expansion coefficient of solids and there unit and relationship between them
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Answer 1

Answer:

All three states of matter (solid, liquid and gas) expand when heated. The atoms themselves do not expand, but the volume they take up does. When a solid is heated, its atoms vibrate faster about their fixed points. The relative increase in the size of solids when heated is therefore small

Answer 2

Explanation:

The SI unit of coefficient of linear expansion can be expressed as °C-1 or °K-1. Here, C indicates Celsius and K indicate Kelvin. The dimension of coefficient of linear expansion will be [M^0L^0T^0K^-1].