physics pro pls fall in..

• heavenscloud

  14 Aug 05, 17:21

  A thermally insulated container is dividedinto two sections by a thermally insulating partition.One section contains 3.0 mol of neon at 400K and the other 1.0mol of neon at 600K.The partition is then removed. Find the equilibrium temperature of the neon, assuming it behaves an ideal monoatomic gas.
  
  pls help me!! thanks!
• sgboy2004

  14 Aug 05, 17:22

  use ohm's law???
• Quinsy

  14 Aug 05, 17:23

  WAH...what standard is this? PV=nRT can use? *blur*
• ditzy

  14 Aug 05, 17:23

  Wah, chimmology101.
• heavenscloud

  14 Aug 05, 17:24

  Originally posted by Quinsy:

  WAH...what standard is this? PV=nRT can use? *blur*

  i tink can. but i dunno use on which part..
  
  

  Originally posted by sgboy2004:

  use ohm's law???

  tt one is electricity wad..
• chunyong

  14 Aug 05, 17:26

  Originally posted by heavenscloud:

  A thermally insulated container is dividedinto two sections by a thermally insulating partition.One section contains 3.0 mol of neon at 400K and the other 1.0mol of neon at 600K.The partition is then removed. Find the equilibrium temperature of the neon, assuming it behaves an ideal monoatomic gas.
  
  pls help me!! thanks!

  dats Yr 1 stuff....chemistry using pv=nrt
• Quinsy

  14 Aug 05, 17:30

  Originally posted by chunyong:

  dats Yr 1 stuff....chemistry using pv=nrt

  what you expect...me year 1 what. WTF. use on the 400k , nean gas, dunn0 what.
• hisoka

  14 Aug 05, 17:35

  i think its using conservation of energy?
• chunyong

  14 Aug 05, 17:43

  molarity know, molar mass of each gas known, temp known, volume oso somewat known, can liao lor
  
  PV=mrt
• heavenscloud

  14 Aug 05, 17:45

  Originally posted by chunyong:

  molarity know, molar mass of each gas known, temp known, volume oso somewat known, can liao lor
  
  PV=mrt

  volume?? how u get the volume??
• chunyong

  14 Aug 05, 17:51

  Originally posted by heavenscloud:

  volume?? how u get the volume??

  final volume= sum of partition 1 + 2's volume. u dun need to find out the volume of 1 and 2, its a dummy variable which will cancel out eventually.
• heavenscloud

  14 Aug 05, 18:00

  Originally posted by chunyong:

  final volume= sum of partition 1 + 2's volume. u dun need to find out the volume of 1 and 2, its a dummy variable which will cancel out eventually.

  so i have to form two equations n solve them together?
• Quinsy

  14 Aug 05, 18:08

  i think, Duh.
• chunyong

  14 Aug 05, 19:06

  if i am not wrong u need v1/v2= something then sub in as v1=how much v2
• FadeToBlack

  14 Aug 05, 19:26

  So easy..
• finoq

  14 Aug 05, 19:27

  i think this made me think i suk even more in studies
• Sagara

  14 Aug 05, 19:28

  use the PV= nRT method..
  
  this qn considered less tedious cuz no reaction involved.
  
  Juz a try...
  
  PV = nRT of Equilibrum ---> A
  
  PV = nRT of 3 mol Neon @ 400K ---> B
  
  PV = nRT of 1 mol Neon @ 600K ---> C
  
  Therefore,
  
  A = B + C
  
  Try to manipulate the equation to cancel out the units ba...
  
  Only T is variable. If this works then i can be proud of myself
  
  Thermodynamics ?
• nightzip

  14 Aug 05, 19:44

  P1 not equal to P2,
  Vt = V1 + V2,
  T1=600k, T2=400k, find Tt.
  n1=3 mol, n2=1 mol, nt = ?
  R is the same for all.
  
  
• AugoeideS

  14 Aug 05, 20:44

  Originally posted by heavenscloud:

  A thermally insulated container is dividedinto two sections by a thermally insulating partition.One section contains 3.0 mol of neon at 400K and the other 1.0mol of neon at 600K.The partition is then removed. Find the equilibrium temperature of the neon, assuming it behaves an ideal monoatomic gas.
  
  pls help me!! thanks!

  I'll try.
  
  1st Section
  3.0mol
  400K
  
  2nd Section
  1.0mol
  600K
  
  PV = nrt
  For 1st section
  3.0 x molar gas constant x 400K -> x joules
  For 2nd section
  1.0 x molar gas constant x 600K -> y joules
  
  x + y = Total Energy.
  So, Total Energy = nrt again.
  
  (x+y) = (3.0+1.0) x molar gas constant x temperature.
  New Temperature = (x+y) / ((3.0+1.0)xmolar gas constant))
  
  
• nightzip

  17 Aug 05, 19:07

  woot! woot! you are smart!