Choose the correct option for the total pressure (in atm.) in a mixture of 4 g O2 and 2 g H2 confined in a total volume of one litre at 0°C is: [Given R = 0.082 L atm mol–1K–1, T=273K] (A) 2.518 (B) 2

Question

Choose the correct option for the total pressure (in atm.) in a mixture of 4 g O2 and 2 g H2 confined in a total volume of one litre at 0°C is: [Given R = 0.082 L atm mol–1K–1, T=273K]

(A) 2.518
(B) 2.602
(C) 25.18
(D) 26.02

Prashant Kotian · Accepted Answer

Correct answer: C. 2 O 4 1 n 32 8 = = mol 2 H 2 n 2 = = 1 mol 2 2 Total O H 1 9 n n n 1 8 8 = + = + = mol PV = nRT PTotal × 1 = 9 8 × 0.082 × 273 PTotal = 25.18 atm 8 Final NEET(UG)-2021 Exam/12-09-2021

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