Unformatted text preview: Explain your answer completely including any assumptions that you make. b) Suppose the two cylinders are both sitting on the desk in this lecture hall. Are the Nb atoms moving faster, the same, or slower (on average) than the Ta atoms? Explain your answer completely including any assumptions that you make. 2) Now compare the Nb cylinder with a balloon that has 0.86 kg of He gas. He atoms have about 23 times smaller mass than Nb atoms. Again, suppose you add equal amounts of heat to the Nb and the He and decide whether the Nb will increase its temperature more, the same, or less than the temperature increase of the He? Explain your answer completely including any assumptions that you make. Useful equations and constants E th /mode = ½ k B T Δ U = Q + W R = 8.3 J/mole K C = Q/ Δ T E th /mode/mole = ½ RT C P = C V + nR k B = 1.4x1023 J/K Nb Ta...
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This note was uploaded on 03/27/2011 for the course PHY 7A taught by Professor Pardini during the Winter '08 term at UC Davis.
 Winter '08
 PARDINI
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