i. Among single bonds, which bond is the strongest? ii. How is bond enthalpy related to bond strength?
Study the following tables showing bond enthalpies of single and multiple bonds.
| Bond | ΔaH/kJ mol-1 |
| C-H | 400-415 |
| N-H | 390 |
| O-H | 460-464 |
| C-C | 345 |
| C-N | 290-315 |
| C-O | 355-380 |
| C-Cl | 330 |
| Bond | ΔaH/kJ mol-1 |
| C-Br | 275 |
| O-O | 175-184 |
| C=C | 610-630 |
| C≡C | 835 |
| C=O | 724-757 |
| C≡N | 854 |
i. Among single bonds, which bond is the strongest?
ii. How is bond enthalpy related to bond strength?
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i. Among single bonds, O-H bond is the strongest.
ii. Larger the bond enthalpy, stronger is the bond.
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