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Physics · PYQ NEET UG 2020
हिन्दीA cylinder contains hydrogen gas at pressure of 249 kPa and temperature \( 27\ ^\circ\text{C} \). Its density is: (\( R = 8.3\text{ J mol}^{-1}\text{ K}^{-1} \))
Correct answer · Option 1
\( 0.2\text{ kg/m}^3 \)
Explanation
Density \( \rho = \frac{PM}{RT} = \frac{249 \times 10^3 \times 2 \times 10^{-3}}{8.3 \times 300} = 0.2\text{ kg/m}^3 \).
