What is the average kinetic energy of each helium atom

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The molecular mass of helium is 4 g/mol, the Boltzmann's constant is 1.38066 × 10?23 J/K, the universal gas constant is 8.31451 J/K · mol, and Avogadro's number is 6.02214 × 1023 1/mol. Given: 1 atm = 101300 Pa.

1. How many atoms of helium gas are required to ?ll a balloon to diameter 21 cm at 71?C and 0.853 atm?

2. What is the average kinetic energy of each helium atom?

3. What is the rms speed of each helium atom?

Reference no: EM13343675

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