A mixture of hydrogen and oxygen has volume 2000 ; cm ^{3}, temperature 300 ; K, pressure 100 ; kPa and mass 0.76 ; g

Q: A mixture of hydrogen and oxygen has volume $2000 \; cm ^{3}$, temperature $300 \; K$, pressure $100 \; kPa$ and mass $0.76 \; g$ The ratio of number of moles of hydrogen to number of moles of oxygen in the mixture will be

b $PV = nRT$ $n=\frac{100 \times 10^{3} \times 2000 \times 10^{-6}}{\frac{25}{3} \times 300}$ $n=80 \times 10^{-3}$ $n_{1}+n_{2}=0.08$ $n_{1} \times 2+n_{2} \times 32=0.76$ $\left(0.08-n_{2}\right) 2+n_{2}(32)=0.76$ $n_{2}=0.02$ $n_{1}=0.06$ $\frac{n_{1}}{n_{2}}=\frac{3}{1}$

SECTION - A [PHYSICS MCQ]

GSEB - English Medium

A mixture of hydrogen and oxygen has volume $2000 \; cm ^{3}$, temperature $300 \; K$, pressure $100 \; kPa$ and mass $0.76 \; g$ The ratio of number of moles of hydrogen to number of moles of oxygen in the mixture will be

A$\frac{1}{3}$
B$\frac{3}{1}$
C$\frac{1}{16}$
D$\frac{16}{1}$

JEE MAIN 2022, Medium

STD 11 Science
JEE
STD 11 - 12 . kinetic theory of gases
Physics

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