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An unknown material has a normal melting/freezing point of -28.1 °C, and the liquid phase has a specific heat capacity of 144 J/(kg C°). One-tenth of a kilogram of the solid at -28.1 °C is put into a 0.106-kg aluminum calorimeter cup that contains 0.118 kg of glycerin. The temperature of the cup and the glycerin is initially 25.6 °C. All the unknown material melts, and the final temperature at equilibrium is 19.1 °C. The calorimeter neither loses energy to nor gains energy from the external environment. What is the latent heat of fusion of the unknown material? Number 3.749 Units J/kg V

An unknown material has a normal melting/freezing point of -28.1 °C, and the liquid phase has a specific heat capacity of 144 J/(kg C°). One-tenth of a kilogram of the solid at -28.1 °C is put into a 0.106-kg aluminum calorimeter cup that contains 0.118 kg of glycerin. The temperature of the cup and the glycerin is initially 25.6 °C. All the unknown material melts, and the final temperature at equilibrium is 19.1 °C. The calorimeter neither loses energy to nor gains energy from the external environment. What is the latent heat of fusion of the unknown material? Number 3.749 Units J/kg V

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An unknown material has a normal melting/freezing point of -28.1 °C, and the liquid phase has a specific heat capacity of 144 J/(kg C°). One-tenth of a kilogram of the solid at -28.1 °C is put into a 0.106-kg aluminum calorimeter cup that contains 0.118 kg of glycerin. The temperature of the cup and the glycerin is initially 25.6 °C. All the unknown material melts, and the final temperature at equilibrium is 19.1 °C. The calorimeter neither loses energy to nor gains energy from the external environment. What is the latent heat of fusion of the unknown material? Number 3.749 Units J/kg V
Transcribed Image Text:An unknown material has a normal melting/freezing point of -28.1 °C, and the liquid phase has a specific heat capacity of 144 J/(kg C°). One-tenth of a kilogram of the solid at -28.1 °C is put into a 0.106-kg aluminum calorimeter cup that contains 0.118 kg of glycerin. The temperature of the cup and the glycerin is initially 25.6 °C. All the unknown material melts, and the final temperature at equilibrium is 19.1 °C. The calorimeter neither loses energy to nor gains energy from the external environment. What is the latent heat of fusion of the unknown material? Number 3.749 Units J/kg V
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