Chapter 19: Q. 6 (page 543)
Draw a first-law bar chart (see Figure 19.12) for the gas process in Figure EX19.6.

Short Answer

The work is positive level and heat is negative level.
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Chapter 19: Q. 6 (page 543)
Draw a first-law bar chart (see Figure 19.12) for the gas process in Figure EX19.6.


The work is positive level and heat is negative level.
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The gas cylinder in Figure Q19.10 is well insulated except for the bottom surface, which is in contact with a block of ice.
The piston can slide without friction. The initial gas temperature is

a. During the process that occurs until
the gas reaches a new equilibrium, are
(i) , (ii) W, and (iii) Q greater than, less than, or equal to zero? Explain.
b. Draw a pV diagram showing the process.
500 J of work are done on a system in a process that decreases the system’s thermal energy by 200 J. How much heat energy is transferred to or from the system?
Shows two different processes taking an ideal gas from state i to state f.
Is the work done on the gas in process A greater than, less than, or equal to the work done in process B? Explain.

A satellite to reflect radar is a diameter, thick spherical copper shell. While orbiting the earth, the satellite absorbs sunlight and is warmed to . When it passes into the earth's shadow, the satellite radiates energy to deep space. The temperature of deep space is actually , as a result of the Big Bang 14 billion years ago, but it is so much colder than the satellite that you can assume a deep-space temperature of . If the satellite's emissivity is , to what temperature, in , will it drop during the 45 minutes it takes to move through the earth's shadow?
Draw a first-law bar chart (see Figure 19.12) for the gas process in

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