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Magazine Chapter 18: A Macroscopic Description of Matter
Q.
A hollow aluminum sphere with outer diameter 10.0 cm has a
mass of 690 g. What is the sphere鈥檚 inner diameter?
Q. 1
Rank in order, from highest to lowest, the temperatures
T1 = 0 K, T2 = 0 C, and T3 = 0 F.
Q. 1
What volume of water has the same mass as 100 cm3 of gold?
Q. 10
What volume of aluminum has the same number of atoms as 10 cm3 of mercury?
Q. 10
A gas under goes the process shown in FIGURE Q18.10. By what factor does the temperature change?
Q. 11
The temperature increases from 300 K to 1200 K as a gas undergoes
the process shown in FIGURE Q18.11. What is the final
pressure?
Q. 11
The lowest and highest natural temperatures ever recorded on earth are -129掳F in Antarctica and 134掳F in Death Valley. What are these temperatures in 掳C and in K?
Q. 12
A student is asked to sketch a pV diagram for a gas that goes
through a cycle consisting of (a) an isobaric expansion, (b) a
constant-volume reduction in temperature, and (c) an isothermal
process that returns the gas to its initial state. The student draws
the diagram shown in FIGURE Q18.12. What, if anything, is wrong
with the student鈥檚 diagram?
Q. 12
At what temperature does the numerical value in 掳F match the numerical value in 掳C?
Q. 13
A demented scientist creates a new temperature scale, the 鈥淶 scale.鈥� He decides to call the boiling point of nitrogen 0掳Z and the melting point of iron 1000掳Z.
a. What is the boiling point of water on the Z scale?
b. Convert 500掳Z to degrees Celsius and to kelvins.
