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28 March, 01:51

A flask contains 0.83mol of neon gas at a temperature of 35°C. The pressure gauge indicates 0.37atm inside the flask. What is the volume of the neon gas?

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  1. 28 March, 02:25
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    Answer: 5.66 dm3

    Explanation:

    Given that:

    Volume of neon gas = ?

    Temperature T = 35°C

    Convert Celsius to Kelvin

    (35°C + 273 = 308K)

    Pressure P = 0.37 atm

    Number of moles N = 0.83 moles

    Note that Molar gas constant R is a constant with a value of 0.0082 ATM dm3 K-1 mol-1

    Then, apply ideal gas equation

    pV = nRT

    0.37atm x V = 0.83 moles x 0.0082 atm dm3 K-1 mol-1 x 308K

    0.37 atm x V = 2.096 atm dm3

    V = (2.096 atm dm3 / 0.37atm)

    V = 5.66 dm3

    Thus, the volume of the neon gas is 5.66 dm3
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