Question

3.5 Define co-efficient of superficial expansion of solid along with mathematical expression​

Answer 1

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Define co-efficient of superficial expansion of solid along with mathematical expression

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Superficial Expansion of Solids: The coefficient of superficial expansion is defined as the ratio of increase in area to its original area for every degree increase in temperature. Coefficient of superficial expansion = Increase in area / (Initial area – Rise in temp) (°C) = 2 × coefficients of linear expansion.

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Answer 2

Answer:

Where 'β' is a constant called a coefficient of superficial expansion. This is an expression for the coefficient of superficial expansion of a solid. The coefficient of superficial expansion is defined as the increase in area per unit original area at 00c per unit rise in temperature.