Grade 12th passPhysical Chemistry

If 240 g of carbon is taken in a container to convert it completely to CO2 but in industry it has been found that 280 g of CO was also formed along with CO2. Find the percentage yield of CO2.

harshit arora

7 Years agoGrade 12th pass

7 Years ago

Yield of CO₂= (Amount of CO₂ actually formed) / (Amount of CO₂ that can be formed by complete oxidation of given carbon)

C + O₂ $\rightarrow$ CO₂

2C + O₂ $\rightarrow$ 2CO

1 mole of Carbon(C) yields 1 mole of CO_2.

Number of moles of carbon = (240)/12 = 20 moles.

Number of moles of carbon that is used to form CO = Number of moles of CO formed = (280)/(28) = 10 moles

$\implies$ Number of moles of carbon used in the formation of CO₂ = Number of moles of CO₂ formed = 20 – 10 = 10 moles

Number of moles of CO₂ that can be formed by the complete oxidation of given amount of carbon = Number of moles of carbon = 20 moles

$\implies$ Yield of CO₂ = (10)/(20) = 0.5

$\implies$ percentage yield of CO₂ = 0.5 * 100% = 50%

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