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A 50-gram ice cube initially at 32 degrees Fahrenheit is heated until 45 grams have become water at 100 degrees Celsius and 5.0 grams have become steam at 100 degrees C. The specific heat, the heat of fusion and the heat of vaporization of H20 are, respectively, 4190 /(kg"K), 333 x 10^3 J/kg, and 2256 x 100^3 J/kg. a) Determine the initial temperature of the ice in Kelvins. b) Calculate the amount of heat, in Joules, needed to melt the ice. c) Calculate the amount of heat, in Joules, needed to convert the 5 grams of water from liquid to vapor. d) Calculate the total amount of heat, in calories, required for the entire process. [Note, the units here are calories, not kilo-Calories.]

A 50-gram ice cube initially at 32 degrees Fahrenheit is heated until 45 grams have become water at 100 degrees Celsius and 5.0 grams have become steam at 100 degrees C. The specific heat, the heat of fusion and the heat of vaporization of H20 are, respectively, 4190 /(kg"K), 333 x 10^3 J/kg, and 2256 x 100^3 J/kg. a) Determine the initial temperature of the ice in Kelvins. b) Calculate the amount of heat, in Joules, needed to melt the ice. c) Calculate the amount of heat, in Joules, needed to convert the 5 grams of water from liquid to vapor. d) Calculate the total amount of heat, in calories, required for the entire process. [Note, the units here are calories, not kilo-Calories.]

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A 50-gram ice cube initially at 32 degrees Fahrenheit is heated until 45 grams have become water at 100 degrees Celsius and 5.0 grams have become steam at 100 degrees C. The specific heat, the heat of fusion and the heat of vaporization of H20 are, respectively, 4190 J/(kg*K), 333 x 10^3 J/kg, and 2256 x 100^3 J/kg. a) Determine the initial temperature of the ice in Kelvins. b) Calculate the amount of heat, in Joules, needed to melt the ice. c) Calculate the amount of heat, in Joules, needed to convert the 5 grams of water from liquid to vapor. d) Calculate the total amount of heat, in calories, required for the entire process. [Note, the units here are calories, not kilo-Calories.]
Transcribed Image Text:A 50-gram ice cube initially at 32 degrees Fahrenheit is heated until 45 grams have become water at 100 degrees Celsius and 5.0 grams have become steam at 100 degrees C. The specific heat, the heat of fusion and the heat of vaporization of H20 are, respectively, 4190 J/(kg*K), 333 x 10^3 J/kg, and 2256 x 100^3 J/kg. a) Determine the initial temperature of the ice in Kelvins. b) Calculate the amount of heat, in Joules, needed to melt the ice. c) Calculate the amount of heat, in Joules, needed to convert the 5 grams of water from liquid to vapor. d) Calculate the total amount of heat, in calories, required for the entire process. [Note, the units here are calories, not kilo-Calories.]
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