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18 August, 17:17

The volume of a gas is 22 mL at 44°C and

0.905 atm. What will the volume be at 17°C

and 0.999 atm?

Answer in units of mL.

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Answers (1)
  1. 18 August, 17:37
    0
    The volume will be 18,23 ml.

    Explanation:

    We use the gas formula, which results from the combination of the Boyle, Charles and Gay-Lussac laws. According to which at a constant mass, temperature, pressure and volume vary, keeping constant PV / T. We convert the unit Celsius into Kelvin: 0 ° C = 273K, 44+273=317K, 17+273=290 K. The volume in L = 22/1000 = 0,022L

    P1xV1/T1 = P2xV2/T2

    V2 = ((P1xV1/T1) xT2) / P2

    V2 = ((0,905 atm x 0,022L/317K) x 290K) / 0,999atm = 0,01823 L

    0,01823x 1000 = 18, 23 ml
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