activation energy

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

For example, swapping chlorophyll and pheophytin in D2 could overcome the electron block, because chlorophyll needs lower activation energy than pheophytin.

From Science Daily • Oct. 13, 2025

Specifically, the transfer of electrons from pheophytin to plastoquinone in D2 requires twice as much activation energy as D1 -- a barrier that electrons seem unable to overcome, preventing energy from flowing forward.

From Science Daily • Oct. 13, 2025

The calculation of OTOCs showed that chemical reactions with a low activation energy at low temperatures where tunneling dominates can scramble information at nearly the quantum limit, like a black hole.

From Science Daily • Apr. 5, 2024

Enzymes are chemical catalysts that speed up chemical reactions by lowering their activation energy.

From Textbooks • Apr. 25, 2013

Even exergonic, energy-releasing reactions require a small amount of activation energy to proceed.

From Textbooks • Apr. 25, 2013