1. The density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat
ID: 627685 • Letter: 1
Question
1. The density of liquid oxygen at its boiling point is 1.14 kg/L , and its heat of vaporization is 213 kJ/kg . How much energy in joules would be absorbed by 3.0L of liquid oxygen as it vaporized? 2. Water's heat of fusion is 80 cal/g , and its specific heat is 1.0 . cal/ g *C Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held 1100g of frozen water at 0 C, and the temperature of the water at the end of the ride was 32 C , how many calories of heat energy were absorbed? Express your answer numerically in calories using three significant figures. 3. A canister is filled with 330 g of ice and 100 g. of liquid water, both at 0 C . The canister is placed in an oven until all H2O the has boiled off and the canister is empty. How much energy in calories was absorbed? Express your answer numerically in calories using two significant figures.Explanation / Answer
FOLLOW THIS 1.14 kg/lit x 3 lit = 3.42 kg 3.42 kg x 213 kj/kg x 1000 = 728,460 joules
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