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14 January, 13:40

Natural gas is a mixture of many substances, primarily CH₄, C₂H₆, C3H8, and C4₄H₁₀. assuming that the total pressure of the gases is 1.48 atm and that their mole ratio is 04 : 4.0 : 1.5 : 0.50 calculate the partial pressure in atmospheres of each gas?

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  1. 14 January, 14:06
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    A. The partial pressure for CH4 = 0.0925atm

    B. The partial pressure for C2H6 = 0.925atm

    C. The partial pressure for C3H8 = 0.346atm

    D. The partial pressure for C4H10 = 0.115atm

    Explanation:

    Total pressure = 1.48atm

    Total mole = 0.4+4+1.5+0.5=6.4

    A. Mole fraction of CH4 = 0.4/6.4 = 0.0625

    The partial pressure for CH4 = 0.0625 x 1.48 = 0.0925atm

    B. Mole fraction of C2H6 = 4/6.4 = 0.625

    The partial pressure for C2H6 = 0.625 x 1.48 = 0.925atm

    C. Mole fraction of C3H8 = 1.5/6.4 = 0.234

    The partial pressure for C3H8 = 0.234 x 1.48 = 0.346atm

    D. Mole fraction of C4H10 = 0.5/6.4 = 0.078

    The partial pressure for C4H10 = 0.078 x 1.48 = 0.115atm
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