JEE Main 2022 · 26 Jul · Shift 1 · Chemistry Q82

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ChemistryInteger+4 / -1Question 82 of 90

A mixture of hydrogen and oxygen contains 40% hydrogen by mass when the pressure is 2.2 bar. The partial pressure of hydrogen is ______ bar. (Nearest Integer)

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Answer and worked solution

Official answer: 2

Moles per 100 g: $\mathrm{H_2}$ 20, $\mathrm{O_2}$ 1.875; mole fraction 0.914, so $p\approx2$ bar.

Answer: 2

Topics:Gas laws

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JEE Main 2022 · 26 Jul · Shift 1, Chemistry question 82