An increase in thermal energy leads to what? An increase in frictional forces on an object Ob A decrease in the kinetic energy of the particles of the particle QU d A decrease in the internal energy of the object until forces act upon it An increase in temperature up until a phase change point is reached

An increase in thermal energy leads to what? An increase in frictional forces on an object Ob A decrease in the kinetic energy of the particles of the particle QU d A decrease in the internal energy of the object until forces act upon it An increase in temperature up until a phase change point is reached

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter19: Temperature, Thermal Expansion And Gas Laws

Section: Chapter Questions

Problem 9PQ: Object A is placed in thermal contact with a very large object B of unknown temperature. Objects A...

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Rub the palm of your hand on a metal surface for about 30 seconds. Place the palm of your other hand on an un-rubbed portion of the surface and then on the rubbed portion. The rubbed portion will feel warmer. Now repeat this process on a wood surface. Why does the temperature difference between the rubbed and unrubbed portions of the wood surface seem larger than for the metal surface?
Object A is placed in thermal contact with a very large object B of unknown temperature. Objects A and B are allowed to reach thermal equilibrium; object Bs temperature does not change due to its comparative size. Object A is removed from thermal contact with B and placed in thermal contact with another object C at a temperature of 40C. Objects A and C are of comparable size. The temperature of C is observed to be unchanged. What is the temperature of object B?
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An ice-cube tray is filled with 75.0 g of water. After the filled tray reaches an equilibrium temperature 20.0C, it is placed in a freezer set at 8.00C to make ice cubes. (a) Describe the processes that occur as energy is being removed from the water to make ice. (b) Calculate the energy that must be removed from the water to make ice cubes at 8.00C.
An ice-cube tray is filled with 75.0 g of water. After the filled tray reaches an equilibrium temperature 20.0C, it is placed in a freezer set at 8.00C to make ice cubes. (a) Describe the processes that occur as energy is being removed from the water to make ice. (b) Calculate the energy that must be removed from the water to make ice cubes at 8.00C.