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30 August, 06:08

A balloon occupies a volume of 2.00 l at 40.0oc. how much volume will it occupy at 30.0oc?

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  1. 30 August, 06:17
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    Charles' law says "at a constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature".

    V α T

    Where V is the volume and T is the temperature in Kelvin of the gas. We can use this for two situations as,

    V₁/T₁ = V₂/T₂

    V₁ = 2.00 L

    T₁ = 40.0 ⁰C = 313 K

    V₂ = ?

    T₂ = 30.0 ⁰C = 303 K

    By applying the formula,

    2.00 L / 313 K = V₂ / 303 K

    V₂ = (2.00 L / 313 K) x 303 K

    V₂ = 1.94 L

    Hence, the volume of the balloon at 30.0 ⁰C is 1.94 L
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