WorksheetsEquilibrium
Total questions: 10
Worksheet time: 5mins
What is equal in an equilibrium reaction?
concentrations
rates
moles
masses
An equilibrium constant, Keq is defined as
product concentrations - reactant concentrations
reactant concentrations - product concentrations
[reactant] / [product]
[product] / [reactant]
If a system at equilibrium "shifts right"
more products are made, reducing reactant concentrations
more reactants are made, reducing product concentrations
the reaction speeds up
the reaction slows down
If an equilibrium constant is very small, K<< 1,
you have more products than reactants at equilibrium
you have more reactants than products at equilibrium
you have small concentrations of all chemicals
you have large concentrations of all chemicals
Which WILL NOT shift an equilibrium?
a change in concentration
a change in temperature
a change in pressure
addition of a catalyst
The "E" in ICE problems stands for
Energy
Europium
Equilibrium
Entropy
The units of concentration used in equilibrium constant expressions is
molality
molarity
% concentration by mass
ppm
If the concentration of a chemical is increased by adding more of it to a system at equilibrium, its concentration will _________________ to get the system back to equilibrium.
stay the same
decrease
increase
get completely used up
In a system at equilibrium
the forward reaction stops
the reverse reaction stops
both reactions stop
both reactions continue at the same rate
If a salt solution is at equilibrium, it is
unsaturated
saturated
super-saturated
salty
