Equilibrium
TRUE or FALSE:
Reaching equilibrium means that the reaction is now complete and is over
False
Le Chatelier's Principle is often visualized as ______________
Teeter - totter / seesaw
In this reaction, how can I speed up the reaction without affecting the amounts in the reaction, pressure, or volume?
H2O + CO <--> H2 + CO2
Add a cataylst
Where is heat written in an endothermic reaction?
Reactants / left side
Equilibrium can never occur unless both the reactants and products react at the same rate.
False
A + B <--> AB
This reaction is at equilibrium.
If I add more of AB, where will equilibrium shift?
Left / towards reactants
2NO2 <--> N2O4 + heat
If I want to make more product, what are two things I can do to shift the reaction towards the products? without changing pressure, volume, or surface area.
Add more NO2
Decrease temperature
Where is heat written in an exothermic reaction?
Products / right side
TRUE or FALSE
Every time I increase the temperature, the reaction will go faster and I'll make more product.
FALSE
A + B <--> AB + heat
This reaction is at equilibrium.
If I decrease the temperature, which way will equilibrium shift?
Right / towards the products
Which reaction will occur the slowest?
1. Br2(g) + H2SO4(aq)
2. Br2(s) + H2SO4(aq)
3. Br2(aq) + H2SO4(aq)
2. Br2(s) + H2SO4(aq)
Will this reaction occur?
Sn + NaCl --> ?
NO
A <---> B
A starts out with 1 mole. It reacts at 60% a minute.
B starts out with 1 mole. It reacts at 20% a minute.
ROUND TO THE NEAREST TENTH. How long until equilibrium?
2 minutes
A + B <--> AB + heat
This reaction is at equilibrium.
If I remove A, which way will equilibrium shift?
Left / towards the reactants
2Mg(s) + 2HCl(aq) <--> MgCl2(aq) + H2(g)
Without adding ANY chemicals or altering temperature, how can I increase the rate of this reaction? without changing pressure or state of matter
Increase surface area of Mg
What are the 2 factors required for a collision to cause a chemical reaction?
1. Enough energy
2. Correct orientation
A <---> B
A starts out with 1 mole. It reacts at 30% a minute.
B starts out with 1 mole. It reacts at 10% a minute.
ROUND TO THE NEAREST TENTH. How long until equilibrium?
4 minutes
A + B <--> AB + heat
This reaction is at equilibrium.
If I add XFZ, a catalyst, which way will equilibrium shift?
No shift
A + B <--> AB
If I added 2 moles of A and 5 moles of AB, how will equilibrium shift?
Towards the reactants / left
Will this reaction occur?
HCl + NaHCO3 --> ?
YES