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JEE Main202117 Mar 2021Morning ShiftChemistryStates of MatterActual

The pressure exerted by a non-reactive gaseous mixture of 6 . 4 g of methane and 8 . 8 g of carbon dioxide in a 10 L vessel at 27 ° C is _____ kPa . (Round off to the Nearest Integer). [Assume gases are ideal, R = 8 . 314 J mol - 1 K - 1 Atomic masses: C : 12 . 0 u , H : 1 . 0 u , O : 16 . 0 u ]

Correct answer

0

Step-by-step solution

Total moles of gases, n = n CH 4 + n CO 2 = 6 . 4 16 + 8 . 8 44 = 0 . 6 Now, P = nRT V = 0 . 6 × 8 . 314 × 300 10 × 10 - 3 = 1 . 49652 × 10 5   Pa = 149 . 652   kPa ≈ 150   kPa

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