Heterogeneous Equilibrium

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

• Heterogeneous equilibrium

• Homogeneous equilibrium

What are [A] and [B]?

• Concentration of reactants.

• Concentration of products.

• Energy of reactants.

• Energy of products.

Tags

NGSS.HS-PS1-5

The square brackets in a K_c expression represent ?

• concentration

• concentration in mol L^-1

• concentration in g L^-1

• the same as round brackets

What is the equilibrium expression for:

Fe₃O₄(s) + 4H₂(g) <=> 3Fe(s) + 4H₂O(g)

K_c =

• [Fe]³ [H₂O]⁴ / [Fe₃O₄] [H₂]⁴

• [Fe₃O₄] [H₂]⁴ / [Fe]³ [H₂O]⁴

• [H₂O]⁴ / [H₂]⁴

• [Fe] [H₂O] / [Fe₃O₄] [H₂]

Tags

NGSS.HS-PS1-7

What is the equilibrium-constant expression for

CO₂(g) + H₂(g) ↔ CO(g) + H₂O(l)

• K_p= (P_CO)(P_H2O) / (P_CO2)(P_H2)

• K_p= (P_CO2)(P_H2) / (P_CO)

• K_p= (P_CO2)(P_H2) / (P_CO)(P_H2O)

• K_p= (P_CO) / (P_CO2)(P_H2)

Consider the following reaction. What would be the equilibrium constant expression?

4Br₂(g) + CH₄(g) ↔ 4HBr(g) + CBr₄(g)

• K_c = [Br₂]⁴ [CH₄]/ [HBr]⁴ [CBr₄]

• K_c = [HBr]⁴ [CBr₄]/ [Br₂]⁴ [CH₄]

• K_c = [HBr ]/ [Br₂]⁴ [CH₄]

• K_c = [HBr]⁴ [CBr₄]/ [Br₂]⁴ [CH]⁴

What is the reaction/equation for this K_c expression_

• 2N₂ + O₂ ⇌ 2NO

• N₂ + O₂ ⇌ NO

• NO ⇌ 2NO

• N₂ + O₂ ⇌ 2NO

Tags

NGSS.HS-PS1-7