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15 November, 20:16

A gas occupies a volume of 140 ml at 30 degrees Celsius and 97 Kpa. What is the volume of the gas at stp

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  1. 15 November, 20:40
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    The standard temperature and the pressure for a gas are 273 K and 1 atm (1.0 x 10⁵ Pa) respectively.

    For this question, combined gas law can be added.

    PV/T = K (constant)

    for both situations that law can be added as;

    P₁V₁/T₁ = P₂V₂/T₂

    P₁ = 97 kPa P₂ = 1.0 x 10⁵ Pa

    T₁ = 303 K T₂ = 273 K

    V₁ 140 mL V₂ = ?

    V₂ = 122.3 mL

    Hence, the volume of gas at STP = 122.3 mL
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