Equilibrium 7.1

For the reaction...
SO₂ + O₂ ↔ SO₃
If the equilibrium shifts to the right, the concentration of SO₃ will ___________.

• increase
• decrease
• remain the same
• double

Tags

NGSS.HS-PS1-6

For the reaction...
heat  +  N₂  +  O₂  ↔  2NO
If the heat is added to the chemical system, the equilibrium will shift _______.

• left
• right
• left and right
• neither left nor right

Tags

NGSS.HS-PS1-6

NGSS.HS-PS1-5

For the reaction...
N_{2 (g)} +  3 H_2 (g) ↔ 2 NH_{3 (g)}

If the pressure in the system is increased,  _______ reaction will be favored.

•  the forward
• the reverse
• neither

Tags

NGSS.HS-PS1-6

Define chemical equilibrium.

• A reaction is reversible.
• The concentration of the reactants is equal to the concentration of the products.
• The rate of a forward reaction is equal to the rate of the reverse reaction.
• The reaction stops and no further change in concentration occurs.

Tags

NGSS.HS-PS1-6

When K is large, 

• There are more products than reactants when the reaction reached equilibrium.
• There are more reactant than products when the reaction reached equilibrium.
• The amount of reactants is equal to the amount of products.

Tags

NGSS.HS-PS1-6

Le Chaltelier's Principle states that if a chemical system at equilibrium is stressed,

• the system will adjust to increase the stress
• the system will adjust to reduce the stress
• the system will not adjust

Tags

NGSS.HS-PS1-6

What is the proper K for the following reaction? 
   2 NO_(g)  +  O_2(g) ↔ 2 NO_2(g)

• K = [NO₂]² / [NO]²[O₂]
• K =  [NO]²[O₂] / [NO₂]²
• K = [NO]²[O₂][NO₂]²
• K = 2[NO][O₂] / 2[NO₂]

What is n and m?

• Coefficient of Products in the Balanced Reaction
• Coefficient of Reactants in the Balanced Reaction
• Order of Reaction with respect to the products
• Order of Reaction with respect to the Reactants

True or False: The value of K_eq is constant at ANY temperature.

• True
• False, it is only constant at a SPECIFIC temperature

Keq < 1

• There are more products than reactants when the reaction reached equilibrium.
• There are more reactant than products when the reaction reached equilibrium.
  
• The amount of reactants is equal to the amount of products.