calculate the amount of heat needed to change 25.0 g ice at -15.0 degrees C to steam at 100 degrees C.:
Heat of fusion = 333 j/g; heat vaporization = 2260 j/g; specific heats: ice = 2.1 J/gK, water - 4.2 j/gK, steam= 2.0 J/gK
a)76 kJ
b)65 kJ
c)48 kJ
d)26 kJ
