Hello, this is from a heat of fusion and vaporization lab that I am having a bit
ID: 1590740 • Letter: H
Question
Hello, this is from a heat of fusion and vaporization lab that I am having a bit of difficulty with. I was able to answer all but this question.
If you were to double the amount of ice and also double the amount of hot water in the first experiment to determine the heat of fusion, how would it change the final tempurature of the mixture? (Assume the stirrer takes up an insignificant amount of energy.) Reason your answer without doing any calculations.
My values for the first experiment:
Mass of calorimeter and water: 0.258kg
Mass of water: 0.239kg
Mass of water, ice, calorimeter: 0.275kg
Mass of ice: 0.036kg
Mass of calorimeter: 0.0118kg
Mass or calorimeter stirrer: 0.0278kg
specific heat of stirrer cstr: 910 J/kg K
Temp of hot water TH: 37.8 oC
Temp of ice T0: 0 oC
Final temp T: 33.3 oC
Latent heat of fusion (from my own calculation...): 7666.5 J/kg
Explanation / Answer
Without calculations, heat losty by water and acquired by ice melting in water depends linearly on mass, so if I double both mass and thus heats and them equal them to compute equilibrium tempreature I guess nothing would change with the case with half masses.
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