a tank used for filling helium balloons has a volume of 0.600m3 and conntains 3.00 mole of helium gas at 30.0o C. Assuminng that the helium behaves like an ideal gas, 1. What is the total translational kinetic energy of the molecules of the gas ? 2. Also using the fact that the molar mass of helium is 4x10-3kg/mole, determine the rms speed of the atoms at 20.0 of the atoms at 20.0oC

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