Chemical Equilibrium

If a K value is greater than 1,

• more products are present at equilibrium

• more reactants are present at equilibrium

Tags

NGSS.HS-PS1-6

Only (aq), (l), and (g) appear in an equilibrium expression.

• True

• False

A larger K means there are ______ products at equilibrium

• more

• less

Tags

NGSS.HS-PS1-6

If K<Q, then the reaction shifts to the _________

• left

• right

Catalysts and inert gases do not shift an equilibrium.

• True

• False

Tags

NGSS.HS-PS1-6

___________ are produced in one step and used up in a later step and __________________ are present and unchanged in the reactants and the products

• intermediates, catalysts

• catalysts, intermediates

At equilibrium, concentrations of reactants and products are

• equal

• constant

Tags

NGSS.HS-PS1-6

Which substance(s) would not be included in a equilibrium constant expression?

• NaCl(s)

• NaCl(aq)

• NaCl(l)

• NaCl(g)

Tags

NGSS.HS-PS1-6

Which of the following statements is true about chemical equilibrium?

• The concentrations of reactants and products are equal.

• The concentrations of reactants and products remain constant over time.

• The reaction stops completely at equilibrium.

• The forward and reverse reactions occur at different rates.

In a chemical equilibrium involving gases, which factor does not affect the equilibrium position?

• Pressure

• Concentration

• Temperature

• Catalyst

Tags

NGSS.HS-PS1-6