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Line 166:
Line 166: − [[File:Rumus 2.png|450px|thumbnail|center]]+
→Compressibility Oil
For P < P<sub>b</sub>:
For P < P<sub>b</sub>:
: <math>\ln{C_o} = -0.644 - 1.430 \ln{P} - 0.395 \ln{P_b} + 0.390 \ln{T} + 0.455 \ln{Rsb} + 0.262 \ln(^{\circ} \text{API})</math>
Where T in Fahrenheit (°F)
Where T in Fahrenheit (°F)