7th Class Science Heat Question Bank Heat

  • question_answer
    A hot liquid is carefully poured into a beaker. The graph shows how its temperature changes as it cools towards room temperature.
    Which process (es) is/are taking place at region X? 
       

    A) Boiling and evaporation

    B) Condensation only

    C) Evaporation only

    D) Solidification and evaporation

    Correct Answer: D

    Solution :

    At region X, both solidification and evaporation are taking place.             


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