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

Question

The pressure exerted by a non-reactive gaseous mixture of $6 . 4g$ of methane and $8 . 8g$ of carbon dioxide in a $10L$ vessel at $27 ° C$ is _____ $kPa .$ (Round off to the Nearest Integer).

[Assume gases are ideal, $R = 8 . 314J{mol}^{- 1}{K}^{- 1}$ Atomic masses: $C: 12 . 0u, H: 1 . 0u, O: 16 . 0u$ ]

Quantrex Academy · Accepted Answer

Correct answer: 0

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 . 652kPa 150kPa

The pressure exerted by a non-reactive gaseous mixture of 6 . 4g of...

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