A metal container has a mass of 500 g and absorbs a total of 3 kJ of heat during a heating operation. If the specific heat capacity of the material of the metal is 2.7 kJ/kg K, calculate the rise in its temperature

. If the same metal container is in the shape of a cylinder of diameter 20 cm and height 20 cm and the material has a coefficient of linear expansion 21106/C, calculate the new surface area of the container.