If enthalpy of atomization for is and bond enthalpy for is , the relation between them:

(1) is (2) does not exist (3) is (4) is

Question

If enthalpy of atomization for  is  and bond enthalpy for  is , the relation between them:

(1) is   (2) does not exist  (3) is   (4) is

Canvas Classes · Accepted Answer

Strategy:
 Compare the thermodynamic definitions. Atomization of a liquid involves two steps: vaporization (changing to gas) and bond dissociation (breaking into atoms).

Step 1: Define the relationship
Process for  (Atomization from liquid): 
Process for  (Bond dissociation): 
.

Step 2: Comparison
Since vaporization is an endothermic process (), it follows that  must be greater than .

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