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Chapter 3: Q9DQ (page 573)
A student asserts that a suitable unit for specific heat is . Is she correct? Why or why not?
The student asserts that a suitable unit for specific heat is . She is correct.
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If the pressure of an ideal monatomic gas is increased while the number of moles is kept constant, what happens to the average translational kinetic energy of one atom of the gas? Is it possible to change boththe volume and the pressure of an ideal gas and keep the average translational kinetic energy of the atoms constant? Explain.
A system is taken from state a to state b along the three paths shown in Fig. Q19.23. (a) Along which path is the work done by the system the greatest? The least? (b) If , along which path is the absolute value of the heat transfer, , the greatest? For this path, is heat absorbed or liberated by the system? Explain
Some folks claim that ice cubes freeze faster if the trays are filled with hot water, because hot water cools off faster than cold water . What do you think?
Is it a violation of the second law of thermodynamics to convert mechanical energy completely into heat? To convert heat completely into work? Explain your answers.
Why do frozen water pipes burst? Would a mercury thermometer break if the temperature went below the freezing temperature of mercury? Why or why not?
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