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156. The heat of vaporization of a certain refrigerant is 148 J/g. Calculate the number of kilograms of refrigerant that must

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m = 16428= 448g moll Jusine DH = BH water, at DH fusion, ice a meat & = 448 x 4.184 x (15-0) +448*333 = 28116.48 + 149184 - 1

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