Equilibrium

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

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Tags

NGSS.HS-PS1-7

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

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Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

What is the Kc expression for the reaction below:
SOCl2(g)  +  H2O(g)   ⇌    SO2(g)  +  2HCl(g)

What are [A] and [B]?

• concentration of reactants
• concentration of products
• energy of reactants
• energy of products

Tags

NGSS.HS-PS1-5

What are [C] and [D]?

• concentration of reactants

• concentration of products

• energy of reactants

• energy of products

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

At elevated temperatures ammonium carbonate, NH₂COONH₄, is in equilibrium with NH₃ and CO₂ according to the equation;

NH₂COONH₄(s) ↔ 2 NH₃(g) + CO₂(g)

What is the equilibrium expression for this reaction?

• K = 2 [NH₃][CO₂]

  [NH₂COONH₄]

• K = [NH₃]²[CO₂]

  [NH₂COONH₄]

• K = 2 [NH₃][CO₂]

• K = [NH₃]²[CO₂]

Changes in pressure will only affect substances that are in the __________ state.

• gaseous
• liquid
• solid
• plasma

Calculate Kc for the reaction HI_(g) —> H_2(g) + I_2(g) given that the concentrations of each species at equilibrium are as follows: [HI] = 0.85 mol/L, [I₂] = 0.60 mol/L, [H₂] = 0.27mol/L.

• 0.19

• 0.22

• 4.5

• 5.25

• 160

A very high value for K indicates that

• reactants are favored.

• products are favored.

• equilibrium is reached slowly.

• equilibrium has been reached

Kc = ?

• products / reactants

• reactants /products