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AB, and are diatomic molecules. If the bond enthalpies of , and AB are in the ratio , then the bond enthalpy of is (Nearest integer).

Question

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AB,  and  are diatomic molecules. If the bond enthalpies of ,  and AB are in the ratio , then the bond enthalpy of  is   (Nearest integer).

Canvas Classes · Accepted Answer

Strategy:
 Relate the enthalpy of reaction to bond enthalpies: . Use the given ratio to solve for the unknown bond energy.

Step 1: Setup variables based on ratio
Ratio .
Let .

Step 2: Write Equation
 (for )

.

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