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Chemistry · PYQ NEET UG 2022
हिन्दीA \( 10.0\text{ L} \) flask contains \( 64\text{ g} \) of oxygen at \( 27\text{ \r{0}C} \). (Assume \( \text{O}_2 \) gas is behaving ideally). The pressure inside the flask in bar is: (Given \( R = 0.0831\text{ L bar K}^{-1}\text{ mol}^{-1} \))
Correct answer · Option 2
\( 4.9 \)
Explanation
Molecules of \( \text{O}_2 = \frac{64}{32} = 2\text{ mol} \). Using \( P = \frac{nRT}{V} = \frac{2 \times 0.0831 \times 300}{10} = 4.986\text{ bar} \approx 4.9\text{ bar} \).
