Question on gases physics/chemistry please help

  • Thread starter GreenPrint
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  • #1
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When I took AP Physics we did similar problems... almost identical lol

Homework Statement



http://img252.imageshack.us/img252/6931/chemistry.jpg [Broken]

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Homework Equations



SEE BELOW

The Attempt at a Solution



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http://img440.imageshack.us/img440/7434/chemistryanswer.jpg [Broken]

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Homework Statement





Homework Equations





The Attempt at a Solution

 
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Answers and Replies

  • #2
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please anybody?
 
  • #3
1,196
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? ANyone know?
 
  • #4
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mathematically I don't see how i am wrong
 
  • #5
2,044
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You have K = 3nRT. There's no mass in this equation. K does not depend on mass.
 
  • #6
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yes but moles is directly proportional to mass so decreasing mass will decrease mass which will decrease kinetic energy right?
 

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