coefficient of expansion

coefficient of expansion

noun Physics.
the fractional change in length, area, or volume per unit change in temperature of a solid, liquid, or gas at a given constant pressure.
Also called expansivity.


Origin:
1870–75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Coefficient of expansion is always a great word to know.
So is heat of fusion. Does it mean:
the heat absorbed by a unit mass of a solid at its melting point that completely converts the solid to a liquid at the same temperature
the meeting of particles or of bodies in which each exerts a force upon the other, causing the exchange of energy or momentum
Collins
World English Dictionary
coefficient of expansion
 
n
Also called: expansivity the amount of expansion (or contraction) per unit length of a material resulting from one degree change in temperature

Collins English Dictionary - Complete & Unabridged 10th Edition
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