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Acid-Base Equilibrium
Atomic Structure And Related Patterns In The Periodic Table
Bonding And Structure, And Intermolecular Forces
Chemical Equilibrium
D-Block Elements (Transition Elements)
DESCRIPTIVE INORGANIC CHEMISTRY: Group IV (14)
DESCRIPTIVE INORGANIC CHEMISTRY: Halogens (GROUP VII or 17)
DESCRIPTIVE INORGANIC CHEMISTRY: Modern Periodic Table, Periodicity And S-Block Elements
Functional Group Chemistry And Reaction Mechanism
ORGANIC CHEMISTRY: Fundamentals
Raoult’s Law And Phase Equilibria
Reaction Kinetics
Redox Equilibrium
The Mole Concept

5/58 MCQs for:

Chemical Equilibrium

The equilibrium position (concentrations of reactants and products at equilibrium) for any particular reversible reaction is altered by changes in the conditions of certain factors such as __

All are correct

Temperature of the reacting system

Concentration of the reacting system

Pressure of the reacting system (for gas phase reactions)

Consider the following systems in equilibrium:
N_{2 (g)} + 3H_{2 (g)} ⇌ 2NH_{3 (g)}

All are correct

If pressure is increased, the equilibrium position will shift to the right to produce fewer gas molecules thereby reducing the pressure of the system according to Le Chatelier’s principle

If pressure is reduced, the equilibrium will shift to the left to produce more gas molecules thereby increasing the pressure of the system in accordance with Le Chatelier’s principle

4 moles of gas molecules on the LHS and 2 moles on the RHS

At chemical equilibrium, which of the following is always true of the concentrations of reactants and products?

They are constant

They are equal

Product concentration is zero

Reactant concentration is zero

In the forward direction of a reversible reaction ... while in the backward direction ... .

Reactants change into products, products change into reactants respectively.

Reactants change into products, products change into products respectively.

Reactants do not change into products, products change into reactants respectively.

Products change into reactants, reactants change into products respectively.

What will happen when additional reactant is added to a system at equilibrium?

More products will form.

More products will change to reactants.

All the added reactants will change to products.

Nothing will occur.