Choose the correct option for the total pressure (in atm.) in a mixture of $4g{O}_{2}$ and $2g{H}_{2}$ confined in a total volume of one litre at $0 ° C$ is
[Given $R = 0 . 082Latm{mol}^{- 1}{K}^{- 1}, T = 273K$ ]

Question

Choose the correct option for the total pressure (in atm.) in a mixture of $4g{O}_{2}$ and $2g{H}_{2}$ confined in a total volume of one litre at $0 ° C$ is

[Given $R = 0 . 082Latm{mol}^{- 1}{K}^{- 1}, T = 273K$ ]

Quantrex Academy · Accepted Answer

Correct answer: C. 25 . 18

Given V = 1L, T = 273K, R = 0 . 082, P _ T = ? and n _ T = (4)/(32) + (2)/(2) = (9)/(8) We know that: P _ T V = n _ T RT Ideal Gas equation. Now putting the values P _ T = (9)/(8) × 0 . 082 × 273 = 25 . 18atm

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