Question
Tue November 20, 2012 By:
 

Arrange these elements in increasing order of their negative enthalpy O,C,N.

Expert Reply
Tue November 20, 2012
For C = -127.5 kJ mol-1 , N zero, O = -140.9 kJ mol-1   
So, Oxygen has most negative enthaply among C, O, N.
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