1) How many calories does it take to heat 10 grams of ice to 28
degrees C?
2) How many calories does it take to heat 10 grams of 19 degree
C water to a vapor?
Heat of Fusion of Ice
A. Determine the number of calories and joules lost by the warm
water.
B. Determine the number of calories and joules needed to warm
the melted ice.
C. Determine the number of calories and joules required to melt
the ice.
D. Calculate the heat of fusion of ice in cal/g and J/g.
Heat of Fusion of Ice
Initial volume of water (Trial 1 &2) = 25 ml, 25 ml
Initial water temperature (Trial 1 &...
What quantity of energy does it take to convert 0.700 kg ice at
–20.°C to steam at 250.°C? Specific heat capacities: ice, 2.03
J/g·°C; liquid, 4.2 J/g·°C; steam, 2.0 J/g·°C; delta Hvap = 40.7
kJ/mol; delta Hfus= 6.02 kJ/mol
How much heat does it take to convert 0.500 kg of ice at
-20oC to steam at 250.oC?
Heat capacities: ice, 2.1 J g-1oC; liquid
4.2 J g-1 oC-1; steam 2.0
g-1 oC-1
Heat of fusion: 6.01 kJ/mol. Heat of vaporization: 40.7
kJ/mol.
How much heat is needed to convert 889 g of ice at -10°C to
steam at 136°C? (The specific heats of ice, steam, and liquid are
2.03 J/g·°C, 1.99 J/g·°C, and 4.18 J/g·°C, respectively. The heat
of fusion is 6.02 kJ/mol and heat of vaporization is 40.79 kJ/mol.)
kJ