Practice question
Question
The bond enthalpy of O=O in O₂(g) is 498 kJ/mol. What is Δ Hf of O(g)?
Explanation
For O₂(g) → 2O(g), Δ H = 498 kJ/mol. Δ Hf (O₂) = 0, so Δ H = 2 × Δ Hf (O) - 0, Δ Hf (O) = 498 / 2 = 249 kJ/mol.
Related blogs
Guides and insights connected to this topic
Membrane Proteins: Structure, Types, Functions
Lipids and proteins are the major components of most plasma membranes. They account for approximately 50-50% each by weight. The carbohydrat...
Omega-3 Fatty Acids: Benefits, Deficiency Symptoms, and Sources
Fatty Acids: Structure and ImportanceFatty acids are chain-like carboxylic acids (organic compounds with a carboxyl group) with long hydroca...
Electrophoretic separation of protein by SDS-PAGE
IntroductionElectrophoresis is the process of migration of charged molecules in response to an electric field. The rate of migration depends...