0 4/29/2016 10:55 PM863/1004/13/2016 05:23 PM Gradebook -Print Calculator Period

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0 4/29/2016 10:55 PM863/1004/13/2016 05:23 PM Gradebook -Print Calculator Periodic Table Question 19 of 28 Map d sapling learning Carbon disulfide (CS2) has a vapor pressure of 300 Torr at room temperature (almost half of atmospheric pressure). A sample of CS2 at a temperature of T = 25.4 °C is contained in a vacuum chamber at a pressure of P = 2.00 × 102 Torr in a research lab. If the diameter of the CS2 molecules is d = 4.26 x10-10 m, estimate the average time between collisions that the gas is experiencing inside the test chamber. Number avg Previous Give Up & View Solution e Check Answer 0 Next Exit Y Hint

Explanation / Answer

Given

k=1.38x10-23JK-1

T= 318.4K

d= 2.46x10-10m

P= 2.00x104 Pa

tavg = (kT/ (2d2P))

tavg = (1.38x10-23 x 318.4) /(2 x 3.14 x (4.26x10-10)2x( 2x104))

tavg = (4.3939x10-21) / ( 1.5098x10-7)

tavg=2.91x10-14 s

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