Chemistry / Chem 1675 · Atom · ~20 seconds
Half-Life's Order Dependence
Video not yet published
to the StudyWalks catalog
to the StudyWalks catalog
State
A first-order half-life stays constant throughout a reaction, but a second- or zero-order half-life changes as concentration falls.
Show
Hydrogen peroxide's first-order half-life stays six hours, while a second-order reaction's half-life grows longer as concentration drops.
Watch for
Assuming every half-life is constant, by analogy with first order, gives a wrong answer for other orders.