Choose the correct option for the total pressure (in atm.) in a mixture of 4 g O_2 and 2 g H_2 confined in a total volume of one litre at 0^° C is :[Given R=0.082 L atm mol^-1K^-1, T=273 K]

1. 2.518

2. 2.602

3. 25.18

4. 26.02

Doubtly Asked 30 Oct 2026 NEET UG 2021 neet Save WhatsApp Report

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Answer: 3. 25.18

Key idea: \(PV=nRT\) with total moles of gas.

\(n_{O_2}=4/32=0.125\); \(n_{H_2}=2/2=1\); total = 1.125 mol.

\(P=\dfrac{nRT}{V}=\dfrac{1.125\times0.082\times273}{1}=25.18\ \mathrm{atm}\).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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