MCAT Question of the Day
    •

    Q:

    		 At 200 K, Substance X is in the liquid phase. Substance X vaporizes at 400 K and has a heat of vaporization of 49.1 kJ/kg. The heat capacity of Substance X is 640 J/kg*°C. What energy input is required to fully vaporize 1 g of Substance X if its initial temperature is 200 K?
    		 

    A

    		 49.1 J

    B

    		 128 J

    C

    		 177.1 J

    D

    		 49.23 kJ



    Thermochemistry | Quantitative Skills |
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