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28 September, 00:08

a sample of oxygen gas has a volume of 151 mL when its pressure is 0.947 atm. what will the volume of the gas be at a pressure of 0.987 atm if the temperature remains constant?

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  1. 28 September, 02:59
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    Answer: 151.2mL

    Explanation:

    Initial volume V1 = 151mL

    Initial pressure P1 = 0.947atm

    Final volume V2 = ?

    Final pressure P2 = 0.948atm

    According to Boyle's law, the volume of a fixed mass of a gas is inversely proportional to the pressure when temperature is constant.

    Thus, Boyles' Law is expressed as:

    P1/V1 = P2/V2

    0.947/151 = 0.948/V2

    To get the value of V2, cross multiply

    0.947 x V2 = 0.948 x 151

    0.947V2 = 143.148

    Divide both sides by 0.947

    0.947V2/0.947 = 143.148/0.947

    V2 = 151.159 mL (Round to nearest tenth 151.2mL

    Thus, the final volume is 151.2mL
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