MCAT Question of the Day
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    Q:

    		 If the pressure and the volume of a system both double, what has happened to the number of moles in the system if the temperature remains constant?
    		 

    A

    		 the moles have doubled

    B

    		 the moles have quadrupled

    C

    		 the moles have halved

    D

    		 the moles have not changed



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