please give me a solution

i need to find the value of V in the following equation

(p+(a/V^2))*(V-b)=RT

where

P=9500KPa

R=.2968Kj/k/kg

T=175 K

a=27R^2*Tcr^2?(64*Pcr)

b=(R*Tcr)/(8Pcr)

Tcr=136.2 K

Pcr=3.39MPa

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- April 27th 2009, 12:35 PMself_shatteredSubstituting values and solving for an unknown
please give me a solution

i need to find the value of V in the following equation

(p+(a/V^2))*(V-b)=RT

where

P=9500KPa

R=.2968Kj/k/kg

T=175 K

a=27R^2*Tcr^2?(64*Pcr)

b=(R*Tcr)/(8Pcr)

Tcr=136.2 K

Pcr=3.39MPa - April 28th 2009, 12:09 AMGrandadNumerical solution of equations
Hello self_shattered

The best advice I can give now is to use a numerical method; e.g. Newton-Raphson, with and .

I'm not sure what the numerical values are, especially

Quote:

a=27R^2*Tcr^2?(64*Pcr)

If you don't know how to use Newton-Raphson, work out the numerical values of (don't bother with the units, they only confuse things); post them here, and I'll do it for you.

Grandad