Tuesday, 12 April 2016

karan roll no 30

why solid are hard?
solid are hard because they have fixed shape and fixed volume and there particles are tightly packed so they have more force of attraction and there are no space between the particles.

when a solid melts,its temperature remains the same , so where does the heat go?
The heat is used to break the force of attraction and used in to convert it ice into water    

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