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Aug 3

# Calculate the energy required to break bonds for CO2 + 2H2O ?

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Aug 3
To calculate the energy required to break the bonds in CO2 and 2H2O, we need to consider the bond energies of the individual bonds in the molecules.

The bond energies for the bonds in CO2 and H2O are as follows:
- C=O bond in CO2: 799 kJ/mol
- O-H bond in H2O: 463 kJ/mol

Now, we can calculate the total energy required to break the bonds in CO2 and 2H2O:

Energy required to break bonds in CO2:
1 C=O bond in CO2 = 799 kJ/mol

Energy required to break bonds in 2H2O:
2 O-H bonds in H2O = 2 * 463 kJ/mol = 926 kJ/mol

Total energy required = Energy to break bonds in CO2 + Energy to break bonds in 2H2O
= 799 kJ/mol + 926 kJ/mol
= 1725 kJ/mol

Therefore, the energy required to break the bonds in CO2 and 2H2O is 1725 kJ/mol.
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Aug 3
Step 1: Determine the bonds that need to be broken.

- 2 C-O bonds in CO2
- 4 O-H bonds in 2H2O

Step 2: Find the bond energies.

- C-O bond energy: 351 kJ/mol
- O-H bond energy: 464 kJ/mol

Step 3: Calculate the total energy required to break the bonds.

- For CO2: 2 C-O bonds x 351 kJ/mol = 702 kJ/mol
- For 2H2O: 4 O-H bonds x 464 kJ/mol = 1856 kJ/mol

Step 4: Add the energies for all bonds.

- Total energy required = 702 kJ/mol + 1856 kJ/mol = 2558 kJ/mol

Therefore, the energy required to break the bonds for CO2 + 2H2O is 2558 kJ/mol.
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