Perform flash calculations under the following separator conditions. Plot GOR and API gravity against separator pressure.

Pressure: $100,200,300,400,500$ psia

Temperature: $150\backslash$deg F

Specific gravity of stock$-$tank oil: $0\mathrm{.}85$ water $=1$

Specific gravity of solution gas: $0\mathrm{.}65$ air $=1$

Gas solubility R$,$: $600$ scf$/$STB

Composition

C$10\mathrm{.}6099$

C$20\mathrm{.}0869$

$0\mathrm{.}0691$

i$-$C$40\mathrm{.}0339$

n$-$C$40\mathrm{.}0378$

i$-$C$50\mathrm{.}0257$

n$-$C$50\mathrm{.}0212$

C$60\mathrm{.}0181$

C$7+0\mathrm{.}0601$

N$20\mathrm{.}0194$

CO$20\mathrm{.}0121$

H$2$S $0\mathrm{.}0058$