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Thermal Expansion / Pengembangan haba

Over small temperature ranges, the linear nature of thermal expansion leads to expansion relationships for length, area, and volume in terms of the linear expansion coefficient.

Dalam julat suhu yang kecil, pengembangan haba linear menjurus ke arah hubungan pengembangan bagi panjang, luas, dan isipadu dalam istilah pekali pengembangan linear.


Table of expansion coefficients /Jadual pekali pengembangan
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Expansion concepts
 
HyperPhysics***** Thermodynamics R Nave
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Linear Expansion /pengembangan linear

The relationship governing the linear expansion of a long thin rod can be reasoned out as follows:


Perkaitan yang mengawal pengembangan linear Pengembangan linear bagi rod nipis yang panjang adalah seperti berikut


Expansion conceptsCalculation
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Linear Expansion

Over small temperature ranges, the fractional thermal expansion of uniform linear objects is proportional the the temperature change. Several equivalent forms of the relationship find use. The calculation is set up in the form

Length change = Original length x alpha x delta T

Common forms

A length change = m will occur
for an object of original length L = m
and expansion coefficient = x10^ /C.
Original temperature = C = F
Final temperature = C = F
Note: This calculation is set up with default values corresponding to heating a 10 meter bar of steel by 20 C. Any of the values may be changed. The final calculation is done by clicking on the quantity you wish to calculate in the active expression above.
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Expansion Concepts


How to loosen a jar lid
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