Fused quartz possesses an exceptionally low coefficient of linear expansion, 5.50 × 10 − 7 ( ∘ c ) − 1 . suppose a bar of fused quartz of length 2.99 m at 20.0 ∘ c is heated to 235 ∘ c . by how much, in millimeters, would the bar expand?

To solve this problem it is necessary to apply the concepts related to thermal linear expansion. Mathematically this concept can be expressed under the Equation:

Where,

Initial Length

Thermal Expanssion constant

Change in Lenght

Our values are given as

Replacing at our equation we have,

Therefore the expantion of the bar is 0.317mm

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