Chapter 20: Q. 31 (page 567)
of a monatomic gas interacts thermally with of an elemental solid. The gas temperature decreases by at constant volume. What is the temperature change of the solid?
Short Answer
The temperature change the solid in
Chapter 20: Q. 31 (page 567)
of a monatomic gas interacts thermally with of an elemental solid. The gas temperature decreases by at constant volume. What is the temperature change of the solid?
The temperature change the solid in
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Get started for freeThe two containers of gas in FIGURE Q20.8 are in good thermal contact with each other but well insulated from the environment. They have been in contact for a long time and are in thermal equilibrium.
a. Is of helium greater than, less than, or equal to of argon? Explain.
b. Does the helium have more thermal energy, less thermal energy, or the same amount of thermal energy as the argon? Explain.
A ball is at rest on the floor in a room of air at . Air is nitrogen and oxygen by volume.
a. What is the thermal energy of the air in the room?
b. What fraction of the thermal energy would have to be conveyed to the ball for it to be spontaneously launched to a height of ?
c. By how much would the air temperature have to decrease to launch the ball?
d. Your answer to part is so small as to be unnoticeable, yet this event never happens. Why not?
What are (a) the average kinetic energy and (b) the rms speed of a proton in the center of the sun, where the temperature is?
The Nobel Prize in Physics was awarded for the discovery of graphene, a two-dimensional form of carbon in which the atoms form a two-dimensional crystal-lattice sheet only one atom thick. Predict the molar specific heat of graphene. Give your answer as a multiple of .
9. Suppose you place an ice cube in a beaker of room-temperature water, then seal them in a rigid, well-insulated container. No energy can enter or leave the container.
a. If you open the container an hour later, will you find a beaker of water slightly cooler than room temperature, or a large ice cube and some steam?
b. Finding a large ice cube and some steam would not violate the first law of thermodynamics. and because the container is sealed, and because the increase in thermal energy of the water molecules that became steam is offset by the decrease in thermal energy of the water molecules that turned to ice. Energy would be conserved, yet we never see an outcome like this. Why not?
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