AFNS — AFNS Chemistry

Chemical Equilibrium


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#9

Le Chatelier principle:

A) System opposes imposed change

B) System accelerates change

C) No effect

D) Only catalyst

Answer:   A
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#10

Increasing concentration of reactant shifts:

A) Toward products

B) Toward reactants

C) No shift

D) Stops reaction

Answer:   A
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#11

Increasing pressure favors side with:

A) Fewer gas moles

B) More gas moles

C) No gases

D) Solids only

Answer:   A
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#12

Exothermic reaction K decreases when:

A) Temperature increased

B) Temperature decreased

C) Pressure increased

D) Volume increased

Answer:   A
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#13

Endothermic reaction favored by:

A) Higher temperature

B) Lower temperature

C) Only catalyst

D) Only pressure

Answer:   A
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#14

Catalyst at equilibrium:

A) Speeds both directions equally

B) Shifts equilibrium

C) Stops reaction

D) Changes K

Answer:   A
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#15

Equilibrium constant Kc uses:

A) Concentrations

B) Pressures only always

C) Masses

D) Volumes only

Answer:   A
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#16

Kp uses:

A) Partial pressures

B) Molarity only

C) Moles only in solid

D) Temperature

Answer:   A
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