Solution-Which dotted lines best approximates the behavior

Which dotted lines best approximates the behavior of helium

Reference no: EM131552900

Question: Nitrogen gas (N₂, M = 28u) at room temperature (300K) and atmospheric pressure has a density of 1.25kgm^-3. The measured root mean square velocity of a N₂ molecule is vrms ≈ 500m/s.

a. What is the average energy of a N₂ molecule under these conditions? Express your answer in J as well as eV.

b. At the same temperature and pressure, what is the average energy of a helium atom (M = 4.0u)?

c. Under these conditions, what is v_rms for a helium atom?

d. Figure shows a plot of the logarithm of pressure (ln P) in a jar v_s. time for an experiment in which gas leaks out of the jar through a tiny hole into a vacuum. The heavy solid line shown is for N₂. Which of the two dotted lines (A or B) best approximates the behavior of helium under the same experimental conditions? Explain briefly

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Fig. - Logarithm of pressure vs. time for gases leaking into a vaccum

Reference no: EM131552900

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Which dotted lines best approximates the behavior of helium

Reference no: EM131552900

Reference no: EM131552900

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