Tennessee State University PHms 2120 Fall14-ouyang: Hw. Thermal Properties of Ma

Question

Tennessee State University PHms 2120 Fall14-ouyang: Hw. Thermal Properties of Matter 26 PM Faha rning.com/ibiscms/mod/ibis/view.php?id-1410508 Lear instruction Michel van Biezen khan acadmey YouTube patrickJMT YouTube Math Meeting YouTube v nnessee State University P Google Translate My Account wards Question 4 of 12 Due Point total translational energy of the molecules of a sample of gas at 467 Kis 1.11 x10 J. How many moles sample Grade Descr Policie Number mol You can You can up on a Find the average translational kinetic energy of a single molecule. Number you get There is O eText O Help o Web H O Techni o Previous 8 Give up 8 View Soulion 2 check Answer 0 Next Exit -l

Explanation / Answer

Part A)

Apply E = (3/2)nRT

1.11 X 104 = (3.2)n(8.31)(467)

n = .894 moles

Part B)

Average KE per molecule = (3/2)(kB)T

Average KE = (3/2)(1.38 X 10-23)(467)

Average KE = 9.67 X 10-21 J

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