A fuel gas containing methane and ethane is burned with air in a furnace, producing a stack gas at 300C and 105 kPa (absolute) The stack gas contains CO 2 at a partial pressure of 80 mm Hg and no CO, O 2 , methane, or ethane Calculate the mole fraction of methane in the fuel and the dew point tempe...

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A fuel gas containing methane and ethane is burned with air in a furnace, producing a stack

Question:

A fuel gas containing methane and ethane is burned with air in a furnace, producing a stack gas at 300°C and 105 kPa (absolute). The stack gas contains CO₂ at a partial pressure of 80 mm Hg and no CO, O₂, methane, or ethane. Calculate the mole fraction of methane in the fuel and the dew-point temperature of the stack gas.