A 500 G Sample of Water Vapor, Initially at 155°C Is

question 19

Multiple Choice

A 5.00 g sample of water vapor, initially at 155°C is cooled at atmospheric pressure, producing ice at −55°C. Calculate the amount of heat energy lost by the water sample in this process, in kJ. Use the following data: specific heat capacity of ice is 2.09 J/g·K; specific heat capacity of liquid water is 4.18 J/g·K; specific heat capacity of water vapor is 1.84 J/g·K; heat of fusion of ice is 336 J/g; heat of vaporization of water is 2260 J/g.

• A)15.6 kJ
• B)10.2 kJ
• C)5.4 kJ
• D)3.2 kJ
• E)1.6 kJ

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