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155-g aluminum cylinder is removed from a liquid nitrogen
Chapter 17, Problem 68P(choose chapter or problem)
Problem 68P
155-g aluminum cylinder is removed from a liquid nitrogen bath, where it has been cooled to −196 °C. The cylinder is immediately placed in an insulated cup containing 80.0 g of water at 15.0 °C. What is the equilibrium temperature of this system? If your answer is 0 °C, determine the amount of water that has frozen. The average specific heat of aluminum over this temperature range is 653 J/(kg · K).
Questions & Answers
QUESTION:
Problem 68P
155-g aluminum cylinder is removed from a liquid nitrogen bath, where it has been cooled to −196 °C. The cylinder is immediately placed in an insulated cup containing 80.0 g of water at 15.0 °C. What is the equilibrium temperature of this system? If your answer is 0 °C, determine the amount of water that has frozen. The average specific heat of aluminum over this temperature range is 653 J/(kg · K).
ANSWER:
Step 1 of 3
The given values are
We have a cube of very cold aluminum placed into a container of water. We need to find the heat transfers from the water to the aluminum until the two are in equilibrium.