Although both CO_(2) and H_(2)O are triatomic molecules,the shaep of H_(2)O molecule is bent while that of CO_(2) is linear. Explain this on the basis of dipple moment?

Although both CO_(2) and H_(2)O are triatomic molecules,the shaep of H

1.	Although both CO_(2) and H_(2)O are triatomic molecules,the shaep of H_(2)O molecule is bent while that of CO_(2) is linear. Explain this on the basis of dipple moment?
Answer» Solution :`CO_(2)` is a linear in which the two C=O are oriented in the OPPOSITE directions at an angle of `180^(@)`. The dipole moment of C=O is 2.3 D due to linear STRUCTURE of `CO_(2)` the bond DIPOLES of two C=O bonds CANCEL with each other. Therefore resultant `mu` is zero. On the other hand `H_(2)O` is polar molecule having dipole moment 1.54 D. Actually `H_(2)O` molecule has bent structure in which O-H bonds are oriented at an angle of `104^(@)5^(1)` and dont cancel the bond moment of each other.