11th Class Physics Motion in a Straight Line / सरल रेखा में गति Question Bank 11th CBSE Physics One Dimensional Motion

  • question_answer
    Why is vapour pressure of solution of glucose in water lower than that of pure water?  

    Answer:

    When glucose is dissolved in water, some of the glucose molecules displace water molecules from the surface. Therefore rate of evaporation of water decreases, hence vapour pressure decreases.  


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