CBSE Class 9 Answered
matter in our surroundings
Asked by | 01 May, 2008, 06:38: PM
Expert Answer
a ) water at room temp is liquid because at room temp
1 intermolecular forces of attaraction is more the gas bt less then solid
2 kinetic energy of molecules is less then that of gas bt more then that of solid
so molecules r less compact n free to move within liquid
b iron is solid at room temp because in iron at room temp
1 intermolecular fores r very high
2 kinetic energy of molecules is very less
so molecules r compactly packed n canvibrate at their mean positin only
Answered by | 06 May, 2008, 01:46: PM
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