7) Assuming a typical nitrogen or oxygen molecule is about 0.3 nm in diameter, what percent of the room you are sitting in is taken up by the volume of the molecules themselves? Assume the room is at 1 atm and 23°C and that the molecule can be approximated as a cube.
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- In the room, the average temperature is around -53 degree celcius and atmospheric pressure is 0.9Kpa. Calculate the number of moles of molecules in unit volumes in the room.In a gas at standard conditions, what is the length of the side of a cube that contains a number of molecules equal to the population of the earth (about 7 × 10⁹ people)?