Question

Calculate the coefficient of cubical expansion of a zinc bar. Whose
volume is increased 0.25 m3 for 0.3m3 due to the change in its
temperature of 50 K.​

Answer 1

Answer:

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Answer 2

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$\implies\frac{∆V}{V}=r\delta T \\ \implies \frac{0.5}{0.30}=r•0.5 \\ \implies r=\frac{0.5}{50•30}\\ \implies r=3.3^{10}^-2$