Calculate the mass of air that escapes

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1.A cylinder containing 19 kg of compressed air at a pressure 9.5 times that of the atmosphere is kept in a store at 7 degrees Celsius. When it is moved to a workshop where the temperature is 27 degrees Celsius a safety valve on the cylinder operates, releasing some of the air. If the valve allows air to escape when its pressure exceeds 10 times that of the atmosphere, Calculate the mass of air that escapes..

2. Calculate approximately the quantum number n for a one litre volume of helium gas at room temperature. the mass of helium atom is 6.65 x 10^-37 kg.

Reference no: EM132855146

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