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  3. please show work. thank you!! question 3: ) air c

Please show work. Thank you!! Question 3: ) Air contains approximately 80% N2 and 20% O2. At STP, what...

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Physics

Please show work. Thank you!!

Question 3:

  1. ) Air contains approximately 80% N2 and 20%O2.
    1. At STP, what is the rms speed of O2 molecules inair?
    2. At STP, what is the average KE of an O2molecule?
    3. At STP, what is the rms speed of N2 molecules?
    4. If we don’t distinguish between N2 andO2, what would be the average rms speed?

  1. Actual question:) Now consider thesame situation as in problem (3) but the 50 cm long rod is halfaluminum and half copper. The aluminum end is in boilingwater.

  1. What would be the steady temperature of the Al-Cujunction?
  2. How much ice will the rod melt in 20 minutes.

Answer & Explanation Solved by verified expert
3.8 Ratings (507 Votes)
Q3 a at stp T27315 k also we know Vrms 3RTM05 V rms o3831427315003205 whereR8314 jmol1 K1 M32gmol 0032kgmol hence Vrmso 4613ms b avg KEo 12MVrmso2 this gives KEo05003246132 3404763 J c    See Answer
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