Anonymous
Anonymous asked in Science & MathematicsEngineering · 4 weeks ago

density calculation problem?

The density of liquid n-pentane is 0.630 g/cm^3 at 18 °C and 1 bar. Estimate its density at 140 °C and 120 bar.

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  • Ash
    Lv 7
    4 weeks ago
    Best Answer

    ρ₁ = 0.630 g/cm³

    T₁ = 18°C + 273 = 291 K

    P₁ = 1 bar

    ρ₂ = ?

    P₂ = 120 bar

    T₂ = 140°C + 273 = 413 K

    P₁/(ρ₁T₁) = P₂/(ρ₂T₂)

    ρ₂ = P₂ρ₁T₁/P₁T₂ = 120*0.630*291/(1*413) = 53.3 g/cm³

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