Define coefficient of linear expansion and coefficient of vooume expansion of solid.How they are related?
Answers
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The coefficient of linear expansion of a substance is the fraction of its original length by which a rod of the substance expands per degree rise in temperature.
Volume expansion is defined as the increase in the volume of the solid on heating.
Answer:
A substance's coefficient of linear expansion is the fraction of its original length that a rod of the substance grows per degree of temperature increase.
Explanation:
The coefficient of superficial growth, or the increase in area as a function of temperature, is around twice that of linear expansion. The cubic expansion coefficient is about three times the linear expansion coefficient. A linear expansion coefficient relates to the deformation of a body due to the thermal temperature. The change in area dimensions of the body with a change in temperature is related to the areal expansion coefficient.
Thus, the fractional increase is defined by linear thermal expansion, whereas the fraction increase in output per unit rise in temperature is defined by volumetric expansion.