(a.) In the deep space between galaxies, the density of atoms (that is, the number of atoms per unit volume, also called the number density) is as low as 10 atoms/m³, and the temperature is a frigid 2.7 K. What is the absolute pressure in Pascals (Pa), assuming we can treat this as an ideal gas? (Note that 1 Pa = 1 N/m² = 1 kg/(m s²)) (b.) Using the value of pressure you calculated in part (a.), what volume (in m³) is occupied by 1 mol of gas? (e.) What is the average kinetic energy (in J) of an atom in this gas?
(a.) In the deep space between galaxies, the density of atoms (that is, the number of atoms per unit volume, also called the number density) is as low as 10 atoms/m³, and the temperature is a frigid 2.7 K. What is the absolute pressure in Pascals (Pa), assuming we can treat this as an ideal gas? (Note that 1 Pa = 1 N/m² = 1 kg/(m s²)) (b.) Using the value of pressure you calculated in part (a.), what volume (in m³) is occupied by 1 mol of gas? (e.) What is the average kinetic energy (in J) of an atom in this gas?
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Transcribed Image Text:(a.) In the deep space between galaxies, the density of atoms (that is, the number of atoms per unit volume, also called
the number density) is as low as 10° atoms/m³, and the temperature is a frigid 2.7 K. What is the absolute pressure
in Pascals (Pa), assuming we can treat this as an ideal gas? (Note that 1 Pa = 1 N/m² = 1 kg/(m s²))
(b.) Using the value of pressure you calculated in part (a.), what volume (in m³) is occupied by 1 mol of gas?
(e.) What is the average kinetic energy (in J) of an atom in this gas?
(d.) Assuming the atoms in this gas are hydrogen atoms (which have a mass of 1.66 x 10-27 kg), what is the average
velocity Urms of the gas atoms?
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