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March 27, 2017

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A sample of gas has its number of molecules halved, its Kelvin temperature doubled, and its volume halved. What is the new pressure, relative to the original pressure?

  • Physical Science - ,

    P V = n R T
    well, R does not change :)
    R = P V/(nT) = P' .5V /(.5n 2T) = P'(.5)V/(nT)
    so
    .5 P' = P
    P' = 2 P

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