71. Increasing volume shifts equilibrium towards:
A) Fewer moles
B) More moles
C) No change
D) Solids
Answer: B
72. Which is unaffected by pressure?
A) Liquid equilibrium
B) Gas equilibrium
C) Solution equilibrium
D) All
Answer: A
73. Le Chatelier’s principle helps predict:
A) Rate
B) Equilibrium shift
C) Energy
D) Time
Answer: B
74. If ΔH is negative, reaction is:
A) Endothermic
B) Exothermic
C) Reversible
D) Slow
Answer: B
75. If ΔH is positive, reaction is:
A) Exothermic
B) Endothermic
C) Fast
D) Irreversible
Answer: B
76. Increasing pressure shifts equilibrium towards:
A) Higher moles
B) Lower moles
C) Equal moles
D) Liquids
Answer: B
77. Kc for reaction depends on:
A) Pressure
B) Volume
C) Temperature
D) Catalyst
Answer: C
78. Which equilibrium involves ions?
A) Physical
B) Chemical
C) Ionic
D) Thermal
Answer: C
79. Equilibrium constant for solid decomposition includes:
A) Solid
B) Gas
C) Both
D) Neither
Answer: B
80. Increasing concentration of product shifts:
A) Right
B) Left
C) No change
D) Stops
Answer: B