Use information provided to solve for C and D
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Use Information Provided To Solve For C And D Only 1 (133.29 KiB) Viewed 47 times
properties of water 2. A bucket is filled with 0.5 kg of water at a temperature of 25°C. a. How much energy (in Joules) would it take to raise the temperature of the water in the bucket to 100°C? specific heat (solid) 2,100 J/(kg K) specific heat (liquid) 4,200 J/(kg K) specific heat (gas) 2,000 J/(kg K) heat of fusion (at 0°C) 330,000 J/kg heat of vaporization (at 100°C) 2,300,000 J/kg b. How much energy (in Joules) would it take to evaporate the 0.5 kg of water if it was already at 100°C?
C. A very hot 3.0 kg iron bar is placed in the bucket of water and all the water evaporates. The specific heat of iron is 450 J/(kg K). If we start with 0.5 kg of water at 25°C and assume that there is no loss of heat to the environment, what is the minimum temperature of the iron bar so that all the water evaporates? d. Now let's assume that some thermal energy was lost to the environment, would you expect your answer in part c) to be larger, smaller, or unchanged? Briefly explain your reasoning.
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