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Chapter 13: Q5PE (page 470)
The surface temperature of the Sun is about 5750 K. What is this temperature on the Fahrenheit scale?
We get the temperature of the surface of the Sun in Fahrenheit as.
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If you add boiling water to a cup at room temperature, what would you expect the final equilibrium temperature of the unit to be? You will need to include the surroundings as part of the system. Consider the zeroth law of thermodynamics.
Question: (a) The density of water at 0ºC is very nearly(it is actually), whereas the density of ice at 0ºC is. Calculate the pressure necessary to keep ice from expanding when it freezes, neglecting the effect such a large pressure would have on the freezing temperature. (This problem gives you only an indication of how large the forces associated with freezing water might be.) (b) What are the implications of this result for biological cells that are frozen?
When a cold alcohol thermometer is placed in a hot liquid, the column of alcohol goes down slightly before going up. Explain why?
Convert an absolute pressure of 7 x 105 N/M2 to gauge pressure in lb/in2 (This value was stated to be just less than 90.0 lb/in2 in Example 13.9. Is it?)
Why does rubbing alcohol evaporate much more rapidly than water at STP (standard temperature and pressure)?
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