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1			Near a large lake, in what direction does a breeze passing over the land tend to blow at night?
2			Explain why the molar specific heat of a diatomic gas such as O2 is larger than that of a monatomic gas such as Ne.
3			When the temperature as measured in °C of a radiating body is doubled (such as a change from 20°C to 40°C), is the radiation rate necessarily increased by a factor of 16?
4			Which possesses more total internal energy, the water within a large, partially ice-covered lake in winter or a 6-cup teapot filled with hot tea? Explain.
5			The water passing over Victoria Falls, located along the Zambezi River on the border of Zimbabwe and Zambia, drops about 105 m. How much internal energy is produced per kg as a result of the fall?
6			What is the heat capacity of 20.0 kg of silver?
7			If 30.0 kcal of heat are supplied to 5.00 × 102 g of water at 22°C, what is the final temperature of the water?
8			Ice at 0.0°C is mixed with 5.00 × 102 mL of water at 25.0°C. How much ice must melt to lower the water temperature to 0.0°C?
9			A birch tree loses 618 mg of water per minute through transpiration (evaporation of water through stomatal pores). What is the rate of heat lost through transpiration?
10			A copper rod of length 0.50 m and cross-sectional area 6.0 × 10-2 cm2 is connected to an iron rod with the same cross section and length 0.25 m (Fig. 14.23). One end of the copper is immersed in boiling water and the other end is at the junction with the iron. If the far end of the iron rod is in an ice bath at 0°C, find the rate of heat transfer passing from the boiling water to the ice bath. <a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=gif::Fig. 14.23::/sites/dl/free/0070524076/57997/fig_23.gif','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif">Fig. 14.23 (40.0K)</a>Fig. 14.23
11			Many species cool themselves by sweating, because as the sweat evaporates, heat is given up to the surroundings. A human exercising strenuously has an evaporative heat loss rate of about 650 W. If a person exercises strenuously for 30.0 min, how much water must he drink to replenish his fluid loss? The heat of vaporization of water is 580 cal/g at normal skin temperature.