HW10-problems - markowitz(am45362 – HW10 – distler...

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Unformatted text preview: markowitz (am45362) – HW10 – distler – (56295) 1 This print-out should have 13 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 (part 1 of 2) 10.0 points Boltzmann’s constant is 1 . 38066 × 10 − 23 J / K. Avogadro’s number is 6 . 02214 × 10 23 / mol. Determine the temperature at which the rms speed of an He atom equals 790 m / s. Answer in units of K 002 (part 2 of 2) 10.0 points What is the rms speed of He on the surface of a certain star, where the temperature is 7725 K? Answer in units of m / s 003 (part 1 of 2) 10.0 points A tank of volume 0 . 283 m 3 contains 3 . 28 mol of helium gas at 75 ◦ C. Assume that the helium behaves like as an ideal gas. The universal gas constant is 8 . 31451 J / K mol, and Boltzmann’s constant is 1 . 38066 × 10 − 23 J / K. Find the total thermal energy of the system....
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This note was uploaded on 11/29/2011 for the course PHY 302K taught by Professor Kaplunovsky during the Spring '08 term at University of Texas.

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HW10-problems - markowitz(am45362 – HW10 – distler...

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