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20 September, 18:21

A weather balloon is inflated to a volume of 25.4 L at a pressure of 743 mmHg and a temperature of 25.8 ∘C. The balloon rises in the atmosphere to an altitude where the pressure is 400. mmHg and the temperature is - 13.0 ∘C. Assuming the balloon can freely expand, calculate the volume of the balloon at this altitude

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Answers (2)
  1. 20 September, 19:00
    0
    41.45 l.

    Explanation:

    Using gas equation,

    (P1V1) / T1 = (P2V2) / T2

    P1 = initial pressure

    = 743 mmhg

    = 99.73 kPa

    V1 = initial volume

    = 25.4 l

    T1 = initial absolute temperature

    = 25.8 + 273.15

    = 298.95 K

    P2 = final pressure

    = 400 mmhg

    = 53.33 kPa

    T2 = final absolute temperature

    = 273.15 + (-13)

    = 260.15 K

    V2 = (99.73 * 25.5 * 260.15) / (298.95 * 53.33)

    = 41.45 l.
  2. 20 September, 20:09
    0
    41.09L

    Explanation:

    i applied the combine formula of chrles and boyles law
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