Question 1
Consider the following information:
Cl2bond energy= 239 kJ/mol | |
F2bond energy= 154 kJ/mol | |
Cl2(g) +F2(g) →ClF3(g) | ΔH° = –409 kJ/mol |
Calculate the Cl-F bond energy given this information.
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267 kJ/mol◦
253 kJ/mol◦
760 kJ/mol◦
136 kJ/mol◦
None of these are correct.Question 2
Consider the following numbered processes:
1. | A → 2B |
2. | B → C + D |
3. | E → 2D |
ΔH for the process A → 2C + E is:
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ΔH1 + ΔH2 + ΔH3.
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ΔH1 + ΔH2.
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ΔH1 + ΔH2- ΔH3.
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ΔH1 + 2ΔH2- ΔH3.
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ΔH1 + 2ΔH2 + ΔH3.