Mulitiple Choice Questions

Question 1

Determine equilibrium direction: add SO3

Answer 1

Left

Question 2

Add catalyst

Answer 2

No change

Question 3

Remove SO2

Answer 3

Left

Question 4

Increase pressure

Answer 4

Right

Question 5

Decrease pressure

Answer 5

Right

Question 6

A half life represents

Answer 6

How long it will take for a reaction to split in half

Question 7

If a reaction has an order of 1 you do what to the reaction rate

Answer 7

Double the reaction rate

Question 8

What step determines the rate law

Answer 8

Slow step

Question 9

If you add more gaseous reactant to a reaction at equilibrium the reaction will shift towards the

Answer 9

Left

Question 10

The reaction is exothermic. What will shift the equilibrium to the left
A. Increase volume
B. Raising the temperature
C. Decrease pressure
D. Adding a catalyst

Answer 10

Increasing the volume

Question 11

Dynamic equilibrium

Answer 11

Occurs when a reaction and it’s reverse reaction proceed at the same rate

Question 12

A catalyst does what to the activation barrier

Answer 12

It lowers activation energy barrier so less energy for the reaction

Question 13

K>1 it favors the

Answer 13

Products

Question 14

K<1 it favors the

Answer 14

Reactants

Question 15

Q>K what does that mean

Answer 15

The reverse reaction will will proceed to form more reactants

Question 16

Q<K what does that mean

Answer 16

It will go to form more products ( you can draw it out)

Question 17

Q=K

Answer 17

Your at equilibrium

Question 18

If it’s a liquid there is

Answer 18

No change in equilibrium

Question 19

In a endothermic process heat is on the

Answer 19

Reactant side

Question 20

In a exothermic process heat is in the

Answer 20

Product side

Question 21

Increase of volume goes to the side of more or less moles

Answer 21

More moles

Question 22

In an equilibrium question with shifting where does it want to shift to

Answer 22

It wants to shift to the side with less stuff to relieve strees

Question 23

How do intermolecular forces affect boiling point

Answer 23

stronger IMF require higher energy to distrupt the interaction
- stronger IMF require higher BP

Question 24

List the IMF in increasing strength (low to high)

Answer 24

Dispersions, dipole-dipole, Hbonds, ion dipole, covalent, ionic

Question 25

Name 2 parts of a solution

Answer 25

Solute and solvent

Question 26

define molaity ( m)

Answer 26

Moles of solute/ kg of solvent

Question 27

Define molarity

Answer 27

Moles of solute/L of solution

Question 28

For solute solvent interactions does delta H increase or decrease to overcome molecular forces

Answer 28

Increase

Question 29

Does increasing temperature increase or decrease the soluability of gases

Answer 29

Decrease

Question 30

What type of IMF is due to the attraction of two polar molecules

Answer 30

Dipole dipole bonds

Question 31

What type of IMF is due to the attraction of two atoms

Answer 31

Dispersion

Question 32

Is the vapor pressure of a solution higher or lower than a pure solvent

Answer 32

Lower

Question 33

By adding table salt to water would the boiling point increase or decrease

Answer 33

Increase

Question 34

Boiling point is defined as the temperature at which

Answer 34

The vapor pressure is equal to the atmospheric pressure

Question 35

Which of the following is true

Answer 35

The soluabilty of a solid is highly dependable on temperature

Question 36

Give the reason that antifreeze is added to a car radiator

Answer 36

The freezing point is lowered and the boiling point is elevated so that the car radiator doesn’t freeze

Question 37

How to know which hydrocarbon has the highest boiling point

Answer 37

Chose the biggest molecule because it needs higher temperature to boil

Question 38

For a solution in a close container at equilibrium which if the following pairs represent a process at equal rate

Answer 38

Evaporation and condensation

Question 39

A solution containing more than a maximum amount of solute is called

Answer 39

A supersaturated solution

Question 40

Subliming

Answer 40

Moving from low to high

Question 41

Condensing

Answer 41

Moving from high to low