Question

A power plant is emitting

3.325 tons of SO2

171.649 tons of NOx

313686 tons of CO2

146 tons of CH4

Calculate the mole fraction of each compound for a carbon capturing machine?

Answer 1

Moles of SO2 = mass/molecular weight

= 3.325*1000 kg / 64kg/kmol

= 52 kmol

Moles of NO2 = 171.649*100/46 = 3731.5 kmol

Moles of CO2 = 313686*1000/44 = 7129227 kmol

Moles of CH4 = 146*1000/16 = 9125 kmol

Total Moles = 52 + 3731.5 + 7129227 + 9125

= 7142135.5 kmol

Mol fraction of SO2 = moles of SO2/total moles

= 52/7142135.5

= 7.28 x 10^-6

Mol fraction of NO2 = 9125/7142135.5 = 1.27 x 10^-3

Mol fraction of CO2 = 7129227/7142135.5 = 0.998

Mol fraction of CH4 = 7129227/7142135.5 = 0.998