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NEET2022ChemistryStates of MatterActual

A 10 . 0   L flask contains 64   g of oxygen at 27 ° C . (Assume O 2 gas is behaving ideally). The pressure inside the flask in bar is (Given R = 0 . 0831   L   bar   K - 1   mol - 1 )

Options

  1. A498 . 6
  2. B49 . 8
  3. C4 . 9
  4. D2 . 5

Correct answer

C. 4 . 9

Step-by-step solution

From the ideal gas equation, P = nRT V P = pressure   of   oxygen V = Volume   of   oxygen T = temperature   of   oxygen   in   K n = Number   of   moles   of   oxygen   gas n = 64 32 = 2 P = 2 × 0 . 0831 × 300 10 = 4 . 986   bar

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