Question

If the cubic expansivity of brass between 27°C and 100°C is 5.7×10^-5k,What is it's linear expansivity?

Answer 1

Given data:

*The cubic expansivity of brass is

`\Delta=5.7*10^(-5)K^(-1)`

The expression for the linear expansivity is given as

`\alpha=(\Delta)/(3)`

Substitute the known values in the above expression as

`\begin{gathered} \alpha=(5.7*10^(-5))/(3) \\ =1.90*10^(-5)K^(-1) \end{gathered}`