Chemistry Equilibrium

2SO₂(g)+O₂(g)⇌2SO₃(g)
Adding SO₂(g) will

• shift equilibrium right

• shift equilibrium left

• increase rate of reaction

• have no change

Tags

NGSS.HS-PS1-5

For the reaction...
SO₂ + O₂  <−>  SO₃
If the concentration of SO₂ is increased, the equilibrium of the reaction will shift ___________.

• left

• right

• left and right 

• neither left nor right

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

For the reaction...
heat  +  N₂  +  O₂  <−>  2NO
If  O₂ is removed, the  concentration of N₂ will _______.

• increase

• decrease

• remain the same

• double

Tags

NGSS.HS-PS1-5

For the reaction...
H_{2 (g)}  + Cl_{2 (g)} <−>  2HCl _(g)  +  heat
If the temperature is cooled, the _________ reaction will be favored.

• forward

• reverse

• forward and reverse

Tags

NGSS.HS-PS1-6

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

The picture shows a reversible chemical reaction taking place. How can equilibrium be reached?

• Stopper the flask.

• Add more reactants.

• Add more products.

• Cool the contents.

Tags

NGSS.HS-PS1-5

The factors that effect a system at equilibrium except:

• Caltalyst

• Temperature

• Pressure and volume

• Concentration

Tags

NGSS.HS-PS1-6

A complete reaction is in which:

• All the reactants convert into products

• All the reactants do not convert into products

• Half reactants convert into products

• only 10% reactants convert into products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

2A + 3B  <---->  2AB
The forward reaction points towards the __________.

• left

• right

• up

• down

For the reaction...
N_{2 (g)} +  3 H_2 (g) <−> 2 NH_{3 (g)}

If the pressure in the system is decreased,  which substance will increase in concentration?

• N₂

• H₂

• N₂ and H₂

• NH₃