Flashcards in 2. Equilibria Deck (12):
Fastors that effwect rate?
What is rate of reaction?
rate= change in concentration/time.
iron in the haber process.
vanadium (5) oxide in the contact process.
Ni in hydration of margarine.
speeds up rate by providing an alternate reaction pathway with a lower activation energy.
isnt used up in the reaction.
may form an intermediate.
Economic importance of catalysts?
made more quickly and easily.
requiring less energy- cuts fuel cost.
reduces waster as a different reaction may now be possible which have better % yield and atom economy.
what is a homogeneous catalyst?
in the same physical state as the reactants.
what is a heterogeneous catalyst?
in a different state to the reactants.
Define dynamic equilibrium.
the equilibrium that exists in a closed system when the rate of the forward reaction = rate of the backwards reaction.
Where are catalyst naturally found?
Why use enzymes in industry?
lower temps and pressures can be used.
usually pure products are formed- so no separation is needed.
Are biodegradable (other ones are toxic) so are easy to dispose.
2 uses of enzymes as a catalyst.