Chemistry Exam 8

Front 1

In an exergonic process, the system

Back 1

Loses energy

Front 2

The concept of entropy

Back 2

Is employed as an indicator of disorder in a system

Front 3

Which of the following states of matter generally has the lowest entropy?

Back 3

A crystalline solid

Front 4

Which of the conditions given is necessary for a chemical reaction to occur

Back 4

The molecules of the reaction time of month bump into each other

Front 5

The reaction conditions for a specific reaction, BC D + ha ---》 ABCD h Karma are correct, but the reaction does not occur what could be the reason?

Back 5

The orientation of molecules with respect to each other is not correct for the reaction to occur

Front 6

Which of the following is most closely related to the term reaction rate

Back 6

The speed of a reaction

Front 7

Catalytic action is

Back 7

Directly opposed by inhibitors

Front 8

Sulfur reacts with oxygen to produce sulfur dioxide, but only in the high activation energy is supplied. Which condition will lower the activation energy the most?

Back 8

Using a catalyst

Front 9

The energy required to start some spontaneous process is called

Back 9

Activation energy

Front 10

In a system of equilibrium, it is true that the rate of the forward reaction

Back 10

Is equal to the rate of the reverse reaction

Front 11

Which statement applies to equilibria in general?

Back 11

The larger the value of K, the greater the amount of matter on the right

Front 12

Back 12

Shift right

Front 13

Refer to equilibrium. Remove H2 from the mixture

Back 13

Shift right

Front 14

Refer to the equilibrium. Add a catalyst to the mixture.

Back 14

No effect

Front 15

When the equilibrium expression is written for the reaction.

What is the exponent of the concentration of fluorine, F2?

Back 15

3

Front 16

Which of the following statement about A K of 3.5 calculateed for a specific chemical reactions at equilibrium is incorrect?

Back 16

A K of 3.5 indicates that a catalyst will push the reaction to the right

Front 17

Which statement is correct application of La chatelier's principle?

Back 17

Additions of a substance to the left side of an equilibrium shifted to the right

Front 18

A process that gains or accept energy as it takes place is a

Back 18

Endergonic process

Front 19

I has a ____ entropy then that of liquid water

Back 19

Lower

Front 20

Which of the following would be the equilibrium expression for a system given below?

Back 20

Front 21

St.clement consist for a series of reactions of the general type

Back 21

Front 22

Back 22

Decreasing the temperature

Front 23

Back 23

1

Front 24

Back 24

C

Front 25

Which of the following is not true regarding a chemical reaction?

Back 25

All particles contained potential energy, and measured by a constant motion

Front 26

Back 26

Front 27

You been told that when a change is made in any factor of an established equilibrium the position of equilibrium will shift in a direction that will minimize or oppose the change. This is a statement of which of the following

Back 27

Le chatelier's principle

Front 28

You purchase a glow stick during an evening parade. After a 10, your roommate tells you that if you place it in the freezer, it will go for a longer time. Assuming she knows what she's talking about, why would this be true

Back 28

Reaction rates can be expected to decrease as temperature is reduced