Suppose you wished to cut the heat loss through the wall in Exercise 61 in half by installing insulation. What thickness of Styrofoam should be placed between the fiberboard and concrete block to accomplish this goal?
Answer to relevant QuestionsA steel cylinder of radius 5.0 cm and length 4.0 cm is placed in end-to-end thermal contact with a copper cylinder of the same dimensions. If the free ends of the two cylinders are maintained at constant temperatures of 95oC ...A waterfall is 75 m high. If of the gravitational potential energy of the water went into heating the water, by how much would the temperature of the water, increase in going from the top of the falls to the bottom? Explain why the process shown in Fig. 12.1b is not that for an ideal gas at constant temperature. On a p–V diagram, sketch a cyclic process that consists of an isothermal expansion followed by an isobaric compression, and lastly followed by an isometric process. A monatomic ideal gas (y = 1.67) is compressed adiabatically from a pressure of 1.00 x 105Pa and volume of 240 L to a volume of 40.0 L. (a) What is the final pressure of the gas? (b) How much work is done on the gas?
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