An aluminium rod is 20.0 cm long at 20°C and has a mass of 350 g. If 10,000 J of energy is added to the rod by heat, what is the change in length of the rod? (Coefficient of linear expansion of aluminium is 24 x 10-6 (°C)-1 and specific heat is 900 J. kg-1°C.

A 0.18mm

B 0.15mm

C 0.25mm

D 0.33mm

Solution

Correct Answer: Option B

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