CHEMICAL EQUILIBRIUM

This symbol indicates that a reaction is ____________

• reversible
• irreversible

Which of the following statements is CORRECT for a reaction at an equilibrium?

• The rate of forward and reverse reactions are equal.

• The concentrations of product and reactant are equal.

• The forward and reverse reactions will stop.

• Always occur in an open system.

Which of the following is NOT the characteristic of a system in equilibrium?

• The rate of forward reaction is equal to the rate of reverse reaction.

• The concentrations of reactants and products remain constant.

• The concentration of the reactants and concentration of the products are equal.

• Reaction quotient, Q equals to the equilibrium constant, K.

When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in

• Chemical Equilibrium
• Chemical Balance
• Chemical Constant
• Chemical Reaction

For the reaction, choose the CORRECT equilibrium constant, K_c.

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From the reaction, choose the CORRECT equilibrium constant, K_p.

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What type of equilibria involved for the reaction below:

SOCl₂(g)  +  H₂O(g)   ⇌    SO₂(g)  +  2HCl(g)

•  Homogeneous equilibria where all reactants and products are in same phase

•   Heterogeneous equilibria where all reactants and products are in same phase

•   Homogeneous equilibria where all reactants and products are in different phase

• Heterogeneous equilibria where all reactants and products are in different phase

At what time does the reaction reach equilibrium?

• t₁
• t₂
• t₃
• t₄

Which of the two graphs reaches equilibrium?

• The left one.
• The right one.
• Both of them.
• Neither.

When all reactants and products have the same physical state, then the reaction is called

• Heterogeneous equilibrium

• Homogeneous equilibrium