Question

differentiate between superficial expansion and cubical expansion?​

Answer 1

Answer:

suerficial Exapansionis defined as the increase in surface area of the solid on heating.

whereas,

Whenever there is an increase in the volume of the body due to heating the expansion is called as cubical or volumetric expansion

Answer 2

Difference between superficial expansion and cubical expansion

Explanation:

• Superficial Expansion: Increase 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.
• Cubical Expansion: The coefficient cubical expansion is defined as an increase in volume per unit original volume at $0^0C$ per unit rise in temperature. Note: The magnitude of the coefficient of cubical expansion is so small that it is not necessary to take the initial temperature as 0 °C.

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