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ME320 solution2

# ME320 solution2 - ME320 Thermodynamics Homework set#2 Due...

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ME320 Thermodynamics Homework set #2 Due: Wednesday 9/17/03 at the start of class 1. If the pressure of a pure substance is increased during the boiling process, will the temperature also increase or will it remain constant? (Explain your response.) Solution: The temperature will also increase. This increase occurs because the saturation temperature of a pure substance depends on pressure. 2. What is the difference between the critical point and the triple point? Solution: At the critical point, the saturated liquid and saturated vapor states of a pure substance are identical. At the triple point, the three phases of a pure substance coexist. 3. A person cooks a meal in a stainless steel pan with diameter 30 cm diameter pot covered with a well-fitting lid and lets the food cool to 20 C. The total mass of the food and the pot is 8 kg. The person now tries to open the pot by lifting up the lid. Assuming that no air has leaked into the pan during cooling, determine whether the lid will open or the pot will move up together with the lid.

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ME320 solution2 - ME320 Thermodynamics Homework set#2 Due...

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