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9th Class Science Matter in Our Surroundings Question Bank Matter in Our Surroundings

  • question_answer
    Direction: Study the given graph carefully and answer the following question.
     
    What is the physical state of matter at points 1, 3 and 5 respectively?

    A) 1-Solid, 3-Liquid, 5-Gas

    B) 1-Solid, 3-Gas, 5-Liquid

    C) 1-Liquid, 3-Gas, 5-Solid

    D) 1-Liquid, 3-Solid, 5-Gas

    Correct Answer: A

    Solution :

    Below 273 K (PQ), matter exists in solid state. At 273 K (QR), inter conversion of solid to liquid takes place. Above 273 K (RS), matter exists in liquid state. At 373 K (ST), inter conversion of liquid to gas takes place. Above 373 K matter exists in gaseous state.


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