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M - Chapter M Problems Blinn College Physics 2425 Terry...

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Chapter M - Problems Blinn College - Physics 2425 - Terry Honan Problem M.1 30 g of water is placed in a 2.5 liter pressure cooker and heated up to 350 °C. What is the pressure inside the cooker assuming no gas escapes and neglecting the gas that was initially inside it? Problem M.2 A spherical weather balloon can expand to a volume with radius 25 m when it is at the extreme height where the pressure is 0.04 atm and where the temperature is - 70 °C. What is its radius when it is near the ground at 1 atm and 25 °C? Problem M.3 A tank contains some unknown gas that may be treated as ideal. When the tank contains 8 kg of gas, the pressure gauge on the tank reads 30 atm. After gas is let out of the tank and the temperature is allowed to return to its earlier value the gauge reads 12 atm. What is the mass of gas left in the tank? Note that a pressure gauge reads the pressure difference between the internal pressure and 1 atm so a gauge pressure of 30 atm means the absolute pressure inside is 31 atm.
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