alleryStart learning →What defines a homogeneous catalyst?
AIt is in the same phase as the reactants
BIt is in a different phase from reactants
CIt is always a finely divided solid metal
DIt is always an enzyme found in the body
Answer & Solution
Correct answer: A. It is in the same phase as the reactants
1. Catalysts are sorted by whether they share a phase with the reactants.
2. A homogeneous catalyst sits in the same phase as them.
3. Nitric oxide catalysing the decomposition of ozone is the standard gas phase example.
4. A catalyst in a different phase is called heterogeneous instead.
_Source: OpenStax Chemistry (CC BY 4.0), Ch 12 "Kinetics", section 12.7 Catalysis_
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