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Calculate the bond energy per mole for breaking all the bonds in methane, CH4
Calculate the bond energy per mole for breaking all the bonds in methane, CH4. Express your answer to four significant figures and include the appropriate units. 1288 KJ mol Submit Hints My Answers Give Up Review Part Incorrect; Try Again; 5 attempts remaining Part B Calculate the bond energy per mole for breaking all the bonds of oxygen, O2? Express your answer to three significant figures and include the appropriate units. AH Value Units Submit Hints My Answers Give Up Review Part Part C calculate the bond energy per mole for forming all the bonds of water molecules, H20. Express your answer to three significant figures and include the appropriate units. 498 kJ mol
Expert Solution
Part A : Total energy to break all bonds of CH4
= 4 x C-H
= 4 x 413
= 1652 kJ/mol
Part B : Bond energy for breaking O2
= 495 kJ/mol
Part C : Bond energy for forming all bonds for H2O
= 2 x O-H
= 2 x 464
= 928 kJ/mol
Part D : Bond energy for forming CO2
= 2 x C=O
= 2 x 736
= 1472 kJ/mol
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