1.

Which of the following does not have zero entropy even at absolute zer0o? CO,CO_(2),NaCl,NO

Answer»

`CO,CO_(2)`
`CO,NO`
`CO_(2),NaCl`
`NaCl`

Solution :CO and NO molcules in solid STATES at 0 K adopt a nearly RANDOM arrangement INDICATING a positive value of entropy. It is DUE to their dipole ment which result in disorder.


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