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 × 10 5 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.
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 × 10 5 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.
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 cp (at constant pressure) and cv (at constant volume) for copper under these conditions.
The internal energy of a system increases by 1350 J when the system absorbs 1150 J of heat energy at a constant pressure of 1.01 X 105 Pa. By how much does the volume (m3) of the system change?
Why is the following situation impossible? An apparatus is designed so that steam initially at T = 150°C, P = 1.00 atm, and V = 0.500 m3 in a piston–cylinder apparatus undergoes a process in which (1) the volume remains constant and the pressure drops to 0.870 atm, followed by (2) an expansion in which the pressure remains constant and the volume increases to 1.00 m3, followed by (3) a return to the initial conditions. It is important that the pressure of the gas never fall below 0.850 atm so that the piston will support a delicate and very expensive part of the apparatus. Without such support, the delicate apparatus can be severely damaged and rendered useless. When the design is turned into a working prototype, it operatesperfectly.
Why is the following situation impossible? An ideal gas undergoesa process with the following parameters: Q = 10.0 J, W = 12.0 J, and ΔT = -2.00°C.
Chapter 19 Solutions
University Physics with Modern Physics (14th Edition)
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