Chemistry, 13.02.2020 01:30 barloase5747
It takes 1 kcal to raise the temperature of 1 kg of liquid water by 1 C, but only 0.5 kcal to raise the temperature of 1 kg of ice or water vapor by 1 C.
Also, it takes 80 kcal to melt 1 kg of ice sitting at 0 C, and 540 kcal to evaporate 1 kg of liquid water sitting at 100 C.
1.) How much heat is required to raise the temperature of 5 kg of liquid water by 20 C?
2.) 50 kcal 100 kcal 400 kcal 2700 kcal How much heat is required to melt 5 kg of ice at 0 C?
3.) 50 kcal 100 kcal 400 kcal 2700 kcal How much heat is required to raise the temperature of 5 kg of ice by 20 C?
Answers: 1
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It takes 1 kcal to raise the temperature of 1 kg of liquid water by 1 C, but only 0.5 kcal to raise...
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