PHYSICS · Multi-part · CBSE · Physics · Thermal Properties of Matter · Thermal Properties of Matter
Problem
A 50.0 g sample of aluminum, initially at 25.0 °C, is placed on a hot plate that supplies 1.25 kJ of thermal energy to the metal. The hot plate is well insulated so that all of the energy goes into the metal. The specific heat capacity of aluminum is 0.897 J g−1 °C−1.
A second experiment is performed under identical conditions with a 50.0 g sample of copper (specific heat capacity 0.385 J g−1 °C−1) that also starts at 25.0 °C.
(a) Calculate the final temperature of the aluminum sample after the energy transfer.
(b) Calculate the final temperature of the copper sample after the same amount of energy is supplied.
(c) Compare the two temperature changes and explain, in the context of the data provided, why the metals respond differently to the identical energy input.