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    Soralysjf's Avatar
    Soralysjf Posts: 3, Reputation: 1
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    #1

    Jun 14, 2010, 01:20 PM
    Gases
    The pressure of Cl2 gas in a 2.0-L cylinder is 300 kPa at 25°C. What is the pressure (in kPa) when this gas is released into a 100-L chamber at 25°C?
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Jun 14, 2010, 01:43 PM

    Use the Ideal Gas Law: . Since the values of and are all constant in this problem, you know that the product of pressure times volume must be constant as well. Thus . You have values for and , so you can calculate .
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Jun 15, 2010, 08:20 AM

    If you know Boyle's Law, this would give you directly the formula:



    which brings down to the same thing as what ebaines said. :)
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