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23 February, 13:22

A gas occupies 18.5L at stp. what volume will it occupy at 735 torr and 57°c?

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  1. 23 February, 13:42
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    The volume that will be occupied at 735 torr and 57 c is 23.12 L

    calculation

    At STP temperature=273 k and pressure=760 torr by use of combined gas formula

    that is P1V1/T1 = P2V2/T2

    where; P1 = 760 torr

    T1 = 273 K

    V1 = 18.5 L

    P2 = 735 torr

    T2 = 57+273 = 330 K

    V2=?

    by making V2 the formula of subject

    V2 = T2P1V1/P2T1

    V2 = [ (18.5L x 330 k x 760 torr) / (735 torr x 273 k) ] = 23.12 L
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