i have an equation, which solving for volume EQUATION: [P+(a/V^2)]*(V-b) = RT solve for V.
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Originally Posted by samsum i have an equation, which solving for volume EQUATION: [P+(a/V^2)]*(V-b) = RT solve for V. First multiply out the bracket: [P+(a/V^2)]*(V-b) = PV + a/V -Pb - ab/V^2 = RT rearrange: (PV-Pb-RT) + a/V - ab/V^2 = 0. Multiply through by V^2: (PV-Pb-RT)V^2 + aV - ab = 0, which is a quadratic in V^2, so you can now use the quadratic formula to find V. RonL
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