03: A sample of natural gas from the Texas field has the specific gravity 0.712(air-1), this gas contains nonhydrocarbon compounds (carbon dioxide, nitrogen and hydrogen sulfide) around (1.9,2.45,11.13) mole % respectively. By using appropriate equations find the gas deviation factor at reservoir temperature 215 °F and pressure 2395.30 psig. Component CH4 C₂H6 C3H8 i-C4H10 N₂ CO₂ H₂S 16.043 30.070 44.097 58.124 28.01 44.01 34.08 708 550 Mole Weight Pa psia Tei R 668 343 616 529 666 735 493 1071 227 574 1306 624

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