Question

14. An iron sphere has a radius of 10 cm at 0°C. The change in volume of the sphere if it is heated
100°C (coefficient of linear expansion of iron = 11 x 10-6 °C-1) is
1) 13.8 cm
2) 9.4 cm3
3) 11.7 cm3
4) 8.7 cm​

Answer 1

• Answer should be 13.8 cm^3
• The most important step is the conversion of linear coefficient of expansion to volumetric coefficient of expansion.