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9 June, 07:23

What is the percentage increased in the volume of a gas when the pressure is reduced to half at constant temperature?

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  1. 9 June, 07:32
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    100% increase.

    Explanation:

    At constant temperature we have the relation

    P1V1 = P2V2 where P and V are pressures and volumes, so here we have, say

    P1 = 10, P2 = 1/2 * 10 = 5, V1 = 10, V2 = ?

    10 * 10 = 5 * V2

    V2 = 100/5 = 20.

    The original volume was 10 so the volume has doubled.
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