NEET Sample Paper NEET Sample Test Paper-33

  • question_answer
    If a drop splits up into a number of drops, then:       

    A)  area increases    

    B)  volume increases          

    C)  energy is absorbed

    D)  energy is liberated         

    Correct Answer: C

    Solution :

    We know that a drop splits into a number of droplets, surface area of the liquid increases. If a drop of liquid is sprayed into a large number of droplets, the surface area of the liquid increases. In this process, the molecules from the interior of the liquid rise to the surface of drops, doing work against the cohesive force. This results in a decrease in the internal energy because energy is absorbed. Consequently the temperature of the drop falls.


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