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anonymous

  • one year ago

A student collected the following data for a fixed volume of gas: Temperature (⁰C) Pressure (mm of Hg) 10 726 20 750 40 800 70 880 100 960 150 ??? Fill in the missing data point. Show all calculations leading to an answer.

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  1. Rushwr
    • one year ago
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    we know for a fixed volume the no. of moles is also fixed. SO in PV=nRT equation V , n and R is constant ( R is universal gas constant so it is anyways constant ) So we can say that \[P \alpha T\] Pressure is directly proportional to the temperature. \[\frac{ P _{1} }{ T _{1} }= \frac{ P _{2} }{ T _{2} }\]

  2. anonymous
    • one year ago
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    okay can please explain more

  3. Rushwr
    • one year ago
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    So use one set of known of data and the unkonwn set like this ! P1/T1=P2/T2 So let's say that the unknown pressure is P1 then P1= P2 x T1 /T2

  4. Rushwr
    • one year ago
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    If we use the 1st set of data given ! P1= ? T1= 150 C P2 = 726 T2 = 10

  5. Rushwr
    • one year ago
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    Did u get it ?

  6. anonymous
    • one year ago
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    yes thanks

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