# Read e-book online An Introduction to Thermal Physics PDF

By Daniel V. Schroeder

ISBN-10: 0201380277

ISBN-13: 9780201380279

This article appears at thermodynamics and statistical mechanics. half I introduces recommendations of thermodynamics and statistical mechanics from a unified view. elements II and III discover additional purposes of classical thermodynamics and statistical mechanics. all through, the emphasis is on real-world purposes.

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28 to each step, and add up all the little works to get the total work. *Even for quasistatic compression, friction between the piston and the cylinder walls could upset the balance between the force exerted from outside and the backward force exerted on the piston by the gas. If W represents the work done on the gas by the piston, this isn't a problem. But if it represents the work you do when pushing on the piston, then I'll need to assume that friction is negligible in what follows. ,.. 24 Chapter 1 Energy in Thermal Physics will escape as the gas is compressed and its temperature won't rise very much.

The heat capacity of the cup itself is negligible. (a) How much heat is lost by the water? (b) How much heat is gained by the metal? (c) What is the heat capacity of this chunk of metal? (d) If the mass ofthe chunk of metal is 100 g, what is its specific heat capacity? 42. 8 J/g·aC. 5 liters of boiling water. What effect does this have on the temperature of the water (before there is time for the stove to provide more heat)? 43. Calculate the heat capacity of liquid water per molecule, in terms of k.

If the motion is slow enough and the gap narrow enough, the fluid flow is laminar: At the macroscopic scale the fluid moves only horizontally, with no turbulence. backward force on the top surface. The more "viscous" the fluid, the more efficient the momentum transfer and the greater these forces will be. Air isn't very viscous; corn syrup is. As with thermal conductivity, it isn't hard to guess how the viscous drag force depends on the geometry of the situation. The simplest guess (which turns out to be correct) is that the force is proportional to the common area of the surfaces, inversely proportional to the width of the gap, and directly proportional to the difference in velocity between the two surfaces.