Practice Questions on Chapter 11: 1.Isopropyl alcohol CH3CHOHCH; is used in rubbing alcohol mixtures. Alcohol on the skin cools by evaporation. How muchheat įs absorbed by the alcohol if439 g evaporates? The heat of vaporization of isopropyl alcohol is 42.1 k/mol. 60.1g/mal 나1399 6oilg/molf,30x10-07 KJ)) 7,30x10-o7 mul 3,08kJ/mal 2. A quantity of ice at 0 O is added to 64.3 g of water in a glass at 55°C After the ice melted the temperature of the water in the glass is 15 C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat of water is 4.18 J/°C.møl. 9 sater I5 9,=(-40)c64.3)(4il8 J (69) -107X10°4J 715 %3D 4.1851(°mol )(i5) -L.07x b2.9 J mol 104J T const y (66103) =9

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