johndoefakeemailnoti johndoefakeemailnoti
  • 14-04-2024
  • Chemistry
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Calculate the initial volume (in mL) at 0 oC of a sample of gas that is changed to 721 mL by cooling to -20 oC at constant pressure.

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jsimpson11000 jsimpson11000
  • 14-04-2024

Answer:

Explanation:

P1V1/T1 = P2V2/T2     Looking for V1

V1 =  P2V2/T2   *  T1/P1         Temps must be in Kelvin

    Since P1 = P2 , this becomes

V1 = V2/ T2  * T1

V1 = 721 / ( 273.15 -20)   * ( 273.15 + 0)   = 778 ml

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