MCAT Question of the Day
    •

    Q:

    		 Freeze-drying is the process by which water can be removed from materials that have been frozen first. Which of the following enhances the rate at which a material can be dried after being frozen?
    		 

    A

    		 increasing the pressure on the material

    B

    		 placing the material in a vacuum

    C

    		 further lowering the temperature of the material

    D

    		 increasing the humidity of the air in which the material has been placed



    Thermochemistry |
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