Le Chateleir's Principle

Which of the following will increase the amount of O2?For the reaction below;
2 SO3 (g)  +  Heat ⇋ 2 SO2 (g)  +  O2 (g)

• Adding SO3
• Adding heat
• Removing SO2
• All the above 

Consider the following reaction: 
Heat  + 2NaClO_3(s) ⇌ 2NaCl_(s) + 3O_2(g)    Which of the following will cause a shift to the right?

• adding more O₂
• adding more NaCl
• removing some NaClO₃
• increasing the temperature

Consider the following equilibrium:  CO_(g) + 2H_2(g) ⇌ CH₃OH_(g) + Heat 
Which of the factors below would decrease the concentration of CH₃OH at equilibrium?

• adding CO
• incresing H₂
• decrease in the temperature
• increasing the temperature

Consider the following equilibrium:   Energy + 2NaClO_3(s) ⇌ 2NaCl_(s) + 3O_2(g)    Which of the following will cause a shift to the right?

• adding more O₂
• adding more NaCl
• removing some NaCl_(s)
• increasing the temperature

Given the reaction below at equilibrium,   2 Cl₂ (g)  +  2 H₂O (g) ⇄ 4 HCl (g)  +  O₂ (g) 
∆H = + 27 kJ
Increasing the volume of the container the reaction will _________. 

• shift left
• shift right
• no change
• the reaction is exothermic

Predict the effect of decreasing the volume of the container on the following reaction: 
2NH₃(g) ⇋ N₂(g) + 3H₂(g) 

• shift left
• shift right
• no change 
• all the above

Predict the effect of decreasing the temperature on the position of the following equilibriums.  
 H₂(g) + Cl₂(g) ⇋ 2HCl(g) + 49.7 kJ

• shift left
• shift right
• no shift
• the reaction id endothermic

Predict the effect of decreasing the temperature on the position of the following equilibriums.
CO(g) + H₂O(g) ⇋CO₂(g) + H₂(g) 
 ΔH = -27.6 kJ

• shift left 
• shift right
• no shift
• the reaction is endothermic 

Predict the effect of decreasing the volume of the container on the following reaction: 
SiO₂(s) + 4HF(g) ⇋ SiF₄(g) + 2H₂O(g)

• shift left
• shift right
• no shift
• all the above

What would happen to the position of the equilibrium when Oxygen is added to the system?
 2SO₃(g) ⇋ 2SO₂(g) + O₂(g) 

• SO_{3 will increase} 
• SO_{3 will decrease} 
• SO2 will increase
• none of the above

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6