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Bond Energy

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Chemical Bonds	19 mins	0 completed	Learn Summary
Lattice Energy	9 mins	0 completed	Learn Summary
Lattice Energy Application	11 mins	0 completed	Learn
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Additional Practice
Bond Energy

Additional Practice

Solution: 2 H₂S(g) + 3 O₂(g) --> 2 SO₂(g) + 2 H₂O(g) Calculate the ∆H_rxnin kJ.Average bond energies:H—S 347 kJ/molO = O 495 kJ/molO—H 463 kJ/mol

Solution: 2 H2S(g) + 3 O2(g) --> 2 SO2(g) + 2 H2O(g)Calculate the ∆Hrxn in kJ.Average bond energies:H—S 347 kJ/molO = O 495 kJ/molO—H 463 kJ/mol

Problem

2 H₂S(g) + 3 O₂(g) --> 2 SO₂(g) + 2 H₂O(g)

Calculate the ∆H_rxnin kJ.

Average bond energies:

H—S 347 kJ/mol

O = O 495 kJ/mol

O—H 463 kJ/mol

Solution

To calculate the ΔH°_rxn using bond energies, we’re going to use the following equation:

Let’s first figure out what kind of bonds and how many moles are present in each reactants and products because the given bond energies are per mole.

Balanced Reaction: 2 H₂S_(g) + 3 O_2(g) → 2 SO₂(g) + 2 H₂O(g)

*always make sure that the given reaction is balanced

Draw the structure of each compound.

Reactants:

• H₂S:

View Complete Written Solution

Bond Energy

Solution: 2 H2S(g) + 3 O2(g) --> 2 SO2(g) + 2 H2O(g) Calculate the ∆Hrxn in kJ.Average bond energies:H—S 347 kJ/molO = O 495 kJ/molO—H 463 kJ/mol

Solution: 2 H2S(g) + 3 O2(g) --&gt; 2 SO2(g) + 2 H2O(g)Calculate the ∆Hrxn in kJ.Average bond energies:H—S 347 kJ/molO = O 495 kJ/molO—H 463 kJ/mol

Practice Problems

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Solution: 2 H₂S(g) + 3 O₂(g) --> 2 SO₂(g) + 2 H₂O(g) Calculate the ∆H_rxnin kJ.Average bond energies:H—S 347 kJ/molO = O 495 kJ/molO—H 463 kJ/mol

Solution: 2 H2S(g) + 3 O2(g) --> 2 SO2(g) + 2 H2O(g)Calculate the ∆Hrxn in kJ.Average bond energies:H—S 347 kJ/molO = O 495 kJ/molO—H 463 kJ/mol