Question

Why is it possible for conformers to interconvert at room temperature?

• A. Because there is no energy difference between different conformer states.
• B. Energy available at room temperature is sufficient.
• C. Conformers are usually found only at high temperatures.
• D. Conformers don't actually exist. They are a theoretical concept.

Answer 1

The correct option is B Energy available at room temperature is sufficient.

Conformers can interconvert at room temperature despite having a considerable rotational energy barrier (energy difference).
This is because energy available from the surroundings at room temperature is usually sufficient to overcome the rotational energy barrier.