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【简答题】
3–15 A piston–cylinder device initially contains 50 L of liquid water at 40°C and 200 kPa. Heat is transferred to the water at constant pressure until the entire liquid is vaporized. (a) What is the mass of the water? (b) What is the final temperature? (c) Determine the total enthalpy change. (d) Show the process on a T-v diagram with respect to saturation lines.
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参考答案：
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【单选题】Why did the U.S. Navy set up underwater microphones around the world in the 1960s?
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To listen for changes in ocean structure.
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To make sure whether there was a giant squid deep in the ocean.
D.
To follow the track of the Soviet warships under water.
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【简答题】The underwater part of an iceberg is ______.
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查看完整题目与答案
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