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Question: Answered & Verified by Expert
100 g of propane is completely reacted with 1000 g of oxygen. The mole fraction of carbon dioxide in the resulting mixture is x×10-2. The value of x is (Nearest integer)
ChemistrySome Basic Concepts of ChemistryJEE MainJEE Main 2021 (27 Aug Shift 2)
Solution:
2954 Upvotes Verified Answer
The correct answer is: 19

          C3H8(g) +  5O2(g)3CO2( g)+4H2O()

t=02.27 mole 31.25 mol

t=0      19.9 mol       6.81 mol   9.08 mol

mole fraction of CO2 in the final reaction mixture (heterogeneous)

XCO2=6.8119.9+6.81+9.08

=0.1902=19.02×10-219

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