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Pressure or volume of a mixture of gases

This type of question, asked 3 times: 2021 Paper 5, 2021 Paper 19, 29 Jun 2022. All 3 questions below, oldest first.

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  1. Question 1

    2021 Paper 5

    9
    The volume VV of an enclosure contains a mixture of three gases, 16 g16\text{ }g of oxygen, 28 g28\text{ }g of nitrogen and 44 g44\text{ }g of carbon dioxide at absolute temperature T. Consider R as universal gas constant. The pressure of the mixture of gases is:

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  2. Question 2

    2021 Paper 19

    4
    A cylindrical container of volume 4.0×10−3 m34.0 \times10^{- 3}{\text{ }m}^{3} contains one mole of hydrogen and two moles of carbon dioxide. Assume the temperature of the mixture is 400 K400\text{ }K. The pressure of the mixture of gases is : [Take gas constant as 8.3 J mol−1 K−18.3\text{ }J{\text{ }mol}^{- 1}{\text{ }K}^{- 1} ]

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  3. Question 3

    29 Jun 2022

    103
    A vessel contains 16 g16\text{ }g of hydrogen and 128 g128\text{ }g of oxygen at standard temperature and pressure. The volume of the vessel in cm3cm^{3} is:

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