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    If 2.4 m3 of a gas initially at STP is compressed to 1.6 m3 and its temperature raised to 30oC, what is the final pressure?
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    Quote Originally Posted by pocahontas
    If 2.4 m3 of a gas initially at STP is compressed to 1.6 m3 and its temperature raised to 30oC, what is the final pressure?
    I'm assuming the gas is ideal.

    \frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}
    Where T is in the absolute (Kelvin) temperature scale.

    At STP, T1 = 273 K and P1 = 1.01 x 10^5 Pa. And V1 = 2.4 m^3.
    We know V2 = 1.6 m^3 and T2 = 273 K + 30 K = 303 K.

    So P_2 = \frac{P_1V_1}{T_1} \cdot \frac{T_2}{V_2} = 168148.35 \, Pa \, = 1.7 \times 10^5 \, Pa

    -Dan
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