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anonymous

  • one year ago

Reducing the volume of a contained gas by one third, while holding temperature constant, causes pressure to A. be decreased by two thirds. B. be increased by two thirds. C. be decreased by one third. D. be increased by one third

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  1. Photon336
    • one year ago
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    Start with \[Pv = nRT\]

  2. Photon336
    • one year ago
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    You keep the temperature constant, as well as the number of moles so nRT = a constant

  3. Photon336
    • one year ago
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    \[Pv = k \]

  4. Photon336
    • one year ago
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    Then you want to know how a change in volume will affect the pressure

  5. Photon336
    • one year ago
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    \[P _{1}V _{1} = P _{2}V _{2}\] this is what you get now

  6. anonymous
    • one year ago
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    yeah......... im not understanding that @Photon336

  7. Photon336
    • one year ago
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    may have to think about it this way |dw:1438032347186:dw| which one has the greater volume?

  8. anonymous
    • one year ago
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    A

  9. Photon336
    • one year ago
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    a bigger volume means that the (gas) has more space to move around

  10. Photon336
    • one year ago
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    and think of pressure as the amount of times that the gas molecules hit the walls of the container.

  11. Photon336
    • one year ago
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    if something has a bigger volume, that's more space so what happens to pressure?

  12. Photon336
    • one year ago
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    |dw:1438032627030:dw| with that said which container would have more pressure if the number if we keep the amount of gas the same?

  13. Photon336
    • one year ago
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    @coniquee ?

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