Explain the meaning of the statement “ The coefficient of linear expansion of iron is 1.2 × 10–5 °C –1 ”
Answers
Explanation:
the value of the length extension per unit length of iron is increasing with the temperature per degree celsius is 1.2×10^-5.
The coefficient of linear expansion of iron is 1.2 x 10⁻⁵ °C⁻¹ means for every one degree Celsius increase there is relative linear increase of 1.2 x 10⁻⁵ in iron.
Step-by-step explanation:
Because of temperature change there is a tendency of matter to change its shape, area, volume, and density.
This process is called thermal expansion.
The relative linear expansion divided by the change in temperature is called the material's coefficient of linear thermal expansion.
relative linear expansion = δL/L
The coefficient of linear expansion of iron is 1.2 x 10⁻⁵ °C⁻¹ means for every one degree Celsius increase there is relative linear increase of 1.2 x 10⁻⁵ in Iron
δL/L = 1.2 x 10⁻⁵ for every on degree increase of temperature in iron
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