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23 December, 19:07

If a certain mass of mercury has a volume of 0.002 m2 at a temperature of 20 celsius, what will be the volume of 50 celsius?

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  1. 23 December, 19:15
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    Answer: 0.0022m3

    Explanation:

    Initial volume of mercury V1 = 0.002m3 (note that the unit of volume can be cm3, m3, dm3 or liters)

    Initial temperature T1 = 20°C

    Convert temperature in Celsius to Kelvin

    (20°C + 273°C = 293K)

    Final temperature T2 = 50°C

    (50°C + 273°C = 323K)

    Final volume V2 = ?

    According to Charle's law, the volume of a fixed mass of a gas is directly proportional to the temperature.

    Mathematically, Charles' Law is expressed as: V1/T1 = V2/T2

    0.002/293 = V2/323

    To get the value of V2, cross multiply

    V2 = (323 x 0.002) / 293

    V2 = 0.646 / 293

    V2 = 0.0022 m3

    Thus, the new volume of mercury will be 0.0022m3
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