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12% OO Verizon LTE 5:07 PM session masteringphysics.com Problem 18. II MasteringPhysics Problem 18. I l The number density in a container of neon gas is 5.40x10 m 3 The atoms are moving with an rms speed of 650 m/s Part A What is the pressure inside the container? Express your answer with the appropriate units. Value Units Submit Give Up Part B What is the temperature inside the container? Express your answer with the appropriate units. T Value Units Give Up Submit Continue

Solution

v,rms = sqrt(3RT/M)

So, 650 = sqrt(3*8.314*T/0.02018)

So, T = 341.8 K

So, P = nRT/V

So, P = (n/V)*RT

So, P = (5.4*10^25/(6.022*10^23))*8.324*341.8

So, P = 2.55*10^5 Pa <---------answer

B)

Temperature,

T = 341.8 K <-------- calculation in part A