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23 Nov 2019
A. Find the amount of heat that must be extracted from 1kgofsteam at a temperature of 110°C in order to convert all ofit to iceat 0°C. What speed would this correspond to ifthis amount ofthermal energy were equal to translational kineticenergy for thegiven mass?
B. A 50g ice cube is added to 110g of water in a 62galuminumcup. The water and cup initially have a temperatureof 23°C. Findthe initial temperature of the ice cubesuch that all of the wateris just turned to ice. Use thefollowing specific heats: water =4186 J/(kg·K), ice = 2090J/(kg·K), and aluminum = 900 J/(kg·K).Thelatent heat of fusion for water is 33.5e4 J/kg
A. Find the amount of heat that must be extracted from 1kgofsteam at a temperature of 110°C in order to convert all ofit to iceat 0°C. What speed would this correspond to ifthis amount ofthermal energy were equal to translational kineticenergy for thegiven mass?
B. A 50g ice cube is added to 110g of water in a 62galuminumcup. The water and cup initially have a temperatureof 23°C. Findthe initial temperature of the ice cubesuch that all of the wateris just turned to ice. Use thefollowing specific heats: water =4186 J/(kg·K), ice = 2090J/(kg·K), and aluminum = 900 J/(kg·K).Thelatent heat of fusion for water is 33.5e4 J/kg
5 Feb 2023
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