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18 October, 08:18

A gas at 300 k and 4.0 atm is moved to a new loacation with a temperature of 250 k. The volume changes from 5.5 L to 2.0 L. What is the pressure of the gas at the new location?

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  1. 18 October, 08:42
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    Answer is: the pressure of the gas is 9,2 atm.

    p₁ = 4,0 atm.

    T₁ = 300 K.

    V₁ = 5,5 L.

    p₂ = ?

    T₂ = 250 K.

    V₂ = 2,0 L.

    Use combined gas law - the volume of amount of gas is proportional to the ratio of its Kelvin temperature and its pressure.

    p₁V₁/T₁ = p₂V₂/T₂.

    4 atm · 5,5 L : 300 K = p₂ · 2,0 L : 250 K.

    0,0733 = 0,008p₂.

    p₂ = 9,2 atm.
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