Comparing bond energies while studying how reactions happen can be tricky for a few reasons:

1. Different Bond Strengths:

   • There are different types of bonds, like single, double, and triple bonds. Each type has a different strength, which makes it hard to compare them directly.
   • The environment, like the presence of solvents, can change bond strengths, adding to the confusion.

2. Measuring Bond Energies is Hard:

   • When scientists try to measure bond energies in the lab, they might not always get the exact numbers due to mistakes in measurement.
   • Also, when they calculate bond energies based on theoretical ideas, it can lead to differences in what they expect to find, making it harder to understand how reactions work.

3. Reactions Involving Multiple Bonds:

   • Most reactions involve breaking several bonds and creating new ones. This can make it difficult to see how much energy each individual bond change contributes.

To help with these challenges, chemists can use computer methods to model and predict bond energies more accurately. This helps make things clearer and gives a better idea of how bonds work in different situations.