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Chemistry, 16.10.2019 19:10 aiguillen6228

You want to determine how effectively evaporization of water cools your 60 kg body at 20°c. at atmo- spheric pressure and 100°c, ahan = 40.66 kj mol- for liquid water. take cp. m of liquid and gaseous waters to be independent of temperature with constant values of 75.4 and 33.76 jk-mol-, respectively. a) devise a path for the process h2o(1, 20°c) → h2o(g, 20°c). (hint: ah is a state function.) b) determine ah vap at 20°c from your path. [43.99 kj mol-'] c) it is 20°c, you are drenched by rain, and your clothes absorb 1.00 l of water. it is also exceedingly windy so this water evaporates very quickly. determine the amount of heat at 20°c required for all of the water to evaporate. (m1,0 = 18.015 g mol-', dh,0 = 0.9928 g ml-' at 20°c) d) assume that the specific heat capacity of you and your clothes is the same as that of water (4.184 j k- g-) and determine what the drop in your body temperature would be due to this evaporation. [9.7 k]

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