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8 June, 11:03

A sample of gas has a volume of 215 cm3 at 23.5 degrees Celsius and 84.6kPa what volume will the gas occupy at stp

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Answers (2)
  1. 8 June, 12:54
    0
    The volume of the gas that occupy at STP is 165. 28 cm^3

    calculation

    by use of combined gas law that is P1V1/T1=P2V2/T2, where

    P1=84.6 kpa

    T1=23.5 + 273=296.5 K

    V1=215 cm^3

    At STP T = 273 K and P = 101.325 Kpa

    therefore p2 = 101.325 Kpa and T2 = 272 K V2=?

    by making V2 the subject of the formula V2 = T2P1V1/P2T1

    V2 = 273 K x 84.6 Kpa x 215 cm^3 / 101,.325 Kpa x296.5 K = 165.28 cm^3
  2. 8 June, 13:49
    0
    The volume of the gas that occupy at STP is 165. 28 cm^3

    calculation

    by use of combined gas law that is P1V1/T1=P2V2/T2, where

    P1=84.6 kpa

    T1=23.5 + 273=296.5 K

    V1=215 cm^3

    At STP T = 273 K and P = 101.325 Kpa

    therefore p2 = 101.325 Kpa and T2 = 272 K V2=?

    by making V2 the subject of the formula V2 = T2P1V1/P2T1

    V2 = 273 K x 84.6 Kpa x 215 cm^3 / 101,.325 Kpa x296.5 K = 165.28 cm^3
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