Equilibrium in Chemistry

Equilibrium is a __________ process

• Static
• Dynamic
• Probabilistic
• Fictitious

At equilibrium the concentration of all species in the reaction is _________.

• Constant
• Increasing
• Decreasing
• Oscillating

Tags

NGSS.HS-PS1-7

The idea that when a system at equilibrium is stressed, it will react to relieve that stress and return to equilibrium is known as:

• Boyle's Law
• Le Chatelier's Principle
• Charles Law
• Denninger's Law

At what time the reaction reached equilibrium?

• t₁
• t₂
• t₃
• t₄

2NH₃+22kJ↔N₂+3H₂
Which direction does the reaction shift if NH₃ was added?

• Shift right 
• Shift left
• No shift
• Shift both directions

Tags

NGSS.HS-PS1-5

2NH₃+22kJ↔N₂+3H₂
Which direction does the reaction shift if NH₃ was removed?

• Shift right 
• Shift left
• No shift
• Shift both directions

Tags

NGSS.HS-PS1-5

2NH₃+22kJ↔N₂+3H₂
Which direction does the reaction shift if H₂ was removed?

• Shift right 
• Shift left
• No shift
• Shift both directions

Tags

NGSS.HS-PS1-5

2NH₃+22kJ↔N₂+3H₂
Which direction does the reaction shift if N₂ was removed?

• Shift right 
• Shift left
• No shift
• Shift both directions

Increasing the temperature on a ________ reaction will increase the concentration of products.

• Endothermic
• Exothermic
• Isothermic

Tags

NGSS.HS-PS1-5

Decreasing the temperature of an exothermic reaction will shift the reaction to the ________ 

• left
• right

Tags

NGSS.HS-PS1-6