Chapter 16-17 Test

Question 1

What do you choose if you see difference

Answer 1

Delta H

Question 2

What symbolizes Delta H

Answer 2

If the line does not touch the to or bottom

Question 3

When you see CAT (Catalyst) look for what?

Answer 3

Act (Activation Energy)

Question 4

When you see ACT (Activation energy) look for what?

Answer 4

CAT (Catalyst)

Question 5

If you see the word collision as an answer what do you do?

Answer 5

PICK IT!!!!!!!!!!!

Question 6

What happens if you see an answer is Powder?

Answer 6

PICK IT!!!!!!!!!!!

Question 7

If you see equilibrium what should you think?

Answer 7

Equal Rate

Question 8

If the line touches the top what kind of energy is it?

Answer 8

Activation

Question 9

If the line touches the bottom line what energy is it?

Answer 9

Potential Energy

Question 10

The only things that can affect rate are

Answer 10

Temperature, Composition, Surface Area, Pressure, Nature of reactant Volume, Catalyst

Question 11

Opposite affect on rate

Answer 11

Activation Energy and Volume

Question 12

Equation for equalibrium expression

Answer 12

Puerto Rico
P (Product)
——————
R (Reactant)

Question 13

Describe an Exothermic Graph

Answer 13

Starts high, goes up a bit and around a bit then falls a lot and then goes straight to the right

Question 14

Describe an Endothermic Graph

Answer 14

Starts lower, goes up a lot and around a little then goes straight to the right

Question 15

The Heat of Reaction (Delta H) is equal to the what?

Answer 15

Heat Content of the Products Minus the Heat Content of the reactants

Question 16

If the graph gives you two numbers what do you do with them?

Answer 16

Subtract them

Question 17

If you see increase circle what?

Answer 17

Increase

Question 18

If you see decrease circle what?

Answer 18

Decrease

Question 19

A(g) + B(g) —> C(g)

As the Concentration of A(g) increases the frequency of collisions of A(g) with B(g) do what

Answer 19

Increase

Question 20

What is the Activated Complex

Answer 20

Goes from highest point to bottom (Must touch top and bottom)

Question 21

In a gaseous system, temperature remaining constant, an increase in pressure will

Answer 21

Increase reaction rate

Question 22

In a gaseous system, temperature remaining constant, a decrease in pressure will

Answer 22

Decrease reaction rate

Question 23

As the surface area of the Zn(s) used in the reaction Zn(s) + 2HCl(aq) ——-> ZnCl2(aq) + H2(g), is increased, the rate of the reaction will

Answer 23

Increase

Question 24

The addition of a catalyst to a reaction will cause a change in the

Answer 24

Activation Energy

Question 25

Which pair of changes would indicate that a reaction is endothermic but occurs spontaneously

Answer 25

a Positive H and Negative G

Question 26

A chemical reaction will always occur spontaneously if the reaction has a

Answer 26

Negative G

Question 27

BaSO4(s) Equilibrium (=) Ba^2+(aq) + SO4^2-(aq)
As the concentration of the SO4^2- ions is increased, at a constant temperature the constant temperature, the concentration of Ba^2+ ions

Answer 27

Decreases

Question 28

AgCl Equilibrium (=) Ag+(aq) + Cl-(aq) 
As the concentration of the Ag+ ions increased, at a constant temperature the concentration of the Cl- ions

Answer 28

Decrease

Question 29

CH3COOH(aq) + H2O(l) Equilibrium (=) H3O+(aq) +CH3COO-(aq)

The addition of what ion will cause a decrease in the concentration of CH3COO-(aq)

Answer 29

H30+

Question 30

N2(g)+3H^2 Equilibrium (=) 2NH^3(g) + heat

Which change favors the formation of ammonia

Answer 30

Increase of N2(g)

Question 31

If you see the word pressure in a question what should you do?

Answer 31

Add the gasses

Question 32

2SO^2(g) + O^2(g) Equilibrium 2SO^3(g)

As the pressure is increased at a constant temperature, the number of moles of SO^3(g) produced will

Answer 32

Increase

Question 33

2A(g) + B(g) + 10kcal Equilibrium (=) C(g)

Which conditions would the yield the most product

Answer 33

High temperature and high pressure

Question 34

What are the only two things that can go into a equilibrium expression?

Answer 34

Gases and aqueous solution

Question 35

What is the equilibrium expression for the reaction

3A(g) + B(g) Equilibrium (=) 2C(g)

Answer 35

[C]^2
_______
[A]^3 [B]

Question 36

Equilibrium Equation for

4NH^3(g) + 7O2(g) Equilibrium (=) 4NO^2(g) + 6H2O(g)

Answer 36

[NO^2]^4[H2O]^6
_______________
[NH^3]^4 [O^2]^7

Question 37

Whats the only thing that can change the status of K

Answer 37

Temperature

Question 38

C(s) +CO^2(g) + heat ——-> 2CO(g)

Which stress on the system would favor the production of CO(g)

Answer 38

Increase Pressure

Question 39

If heat is on the left the reaction is

Answer 39

Endothermic

Question 40

If heat is on the right the reaction is

Answer 40

Exothermic