In the deep space between galaxies, the density of atoms is as low as 106 atoms/m3, and the temperature is a frigid 2.7 K. What is the pressure (in Pa) ?

Question

Gabriel

Physics

21 November, 05:30

In the deep space between galaxies, the density of atoms is as low as 106 atoms/m3, and the temperature is a frigid 2.7 K. What is the pressure (in Pa) ?

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Answers (1)

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Ernesto Edwards · Answer 1

Answer: 3.73 * 10^-17 Pa

Explanation:

N/V = 10^6 atom/m^3

T=2.7k

Kb=1.38 * 10^-23 J/K

NA = 6.02 * 10^23 mol^-1

R = 8.31J/mol. K

PV = NaKbT

PV = N/V * KbT

P = 10^6 * 1.38 * 10^-23 * 2.7

Pressure = 3.73*10^-17 Pa