Section: Thermodynamics | Marks: 1
The molecular weight of a mixture is 38.4 gm/mol. The mixture is composed of methane and carbon-dioxide gases. The atomic weights of the elements C, H, and O are 12, 1, and 16 gm/mol, respectively. The mole fraction of methane (Xmethane) is ____________ and that of carbon-dioxide (X carbon-dioxide) is _______.
- A. Xmethane = 0.2; X carbon-dioxide = 0.8
- B. Xmethane = 0.8; X carbon-dioxide = 0.2
- C. Xmethane = 0.3; X carbon-dioxide = 0.7
- D. Xmethane= 0.7; X carbon-dioxide = 0.3
Answer: A. Xmethane = 0.2; X carbon-dioxide = 0.8