Chapter 19, Problem 19.48P

CP A Thermodynamic Process in a Solid. A cube of copper 2.00 cm on a side is suspended by a string. (The physical properties of copper are given in Tables 14.1, 17.2, and 17.3.) The cube is heated with a burner from 20.0°C to 90.0°C. The air surrounding the cube is at atmospheric pressure (1.01 × 10⁵ Pa). Find (a) the increase in volume of the cubc; (b) the mechanical work done by the cube to expand against the pressure of the surrounding air; (c) the amount of heat added to the cube; (d) the change in internal energy of the cube. (c) Based on your results, explain whether there is any substantial difference between the specific heats c_p (at constant pressure) and c_v (at constant volume) for copper under these conditions.