A cylinder of Krypton has contains 17 L of Ar at 22.8 atm and 112 degrees celsisus. How many moles are in the cylinder?​

Question

A cylinder of Krypton has contains 17 L of Ar at 22.8 atm and 112 degrees celsisus. How many moles are in the cylinder?​

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Thành Đạt 4 years 2021-08-22T17:23:53+00:00 1 Answers 10 views 0

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  1. linhdan
    0
    2021-08-22T17:25:19+00:00
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    Given :

    A cylinder of Krypton has contains 17 L of Ar at 22.8 atm and 112 degrees Celsius.

    To Find :

    How many moles are in the cylinder.

    Solution :

    We know, by ideal gas equation :

    PV = nRT\\\\n = \dfrac{PV}{RT}

    Here, R is gas constant and R = 8.205 \times 10^{-5} \ m^3\ atm\ K^{-1} mol^{-1}

    Converting all given in required units and putting in above equation, we get :

    n = \dfrac{P\times V}{ R \times T}\\\\n = \dfrac{22.8 \times 0.017}{8.205\times (112+273)}\ moles\\\\n = 1.22 \times 10^{-4} \ moles

    Hence, this is the required solution.

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