- #1
jisbon
- 476
- 30
- Homework Statement
- Consider an empty and closed box made of isotropic material. The surface
area of the box is ##52 cm^2## at 25 °C. The linear coefficient of thermal expansion
of the material is ##24*10^{-6}##K. If the temperature of the box is raised to 125 °C,
calculate
(i) its surface area and
(ii) the percentage increase of the volume using the percentage increase of
the surface area.
- Relevant Equations
- -
Hi all,
For area expansion, I know the equation goes like:
Hence, my answer to part i is
##\begin{aligned}A=A_{0}\left( 1+2\alpha \Delta T\right) \\ = 52\left( 1+2*24\times 10^{-6}\right) \left( 100\right) \\ =52.2496cm^{2}\end{aligned} ##
Now I am unsure how to proceed with part 2 in this case, any pointers?
Thanks
For area expansion, I know the equation goes like:
Hence, my answer to part i is
##\begin{aligned}A=A_{0}\left( 1+2\alpha \Delta T\right) \\ = 52\left( 1+2*24\times 10^{-6}\right) \left( 100\right) \\ =52.2496cm^{2}\end{aligned} ##
Now I am unsure how to proceed with part 2 in this case, any pointers?
Thanks