JEE PYQ: States Of Matter Question 5
Question 5 - 2021 (24 Feb Shift 2)
The volume occupied by 4.75 g of acetylene gas at $50^\circ\text{C}$ and 740 mmHg pressure is ____ L. (Rounded off to the nearest integer) (Given $R = 0.0826$ L atm $\text{K}^{-1} \text{mol}^{-1}$)
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Answer: 5
Solution
$T = 323.15$ K, $P = \frac{740}{760}$ atm, $n = \frac{4.75}{26}$. $V = \frac{nRT}{P} = 4.97 \approx 5$ L.