CHEM_U5_KineticsEqulibrium

What two factors govern whether a collision between reacting particles will be effective?

• orientation and potential energy 
• kinetic energy and temperature 
• kinetic energy and orientation 
• potential energy and kinetic energy 

Under the collision theory, the particles must collide with  ____ and ____ for a reaction to occur.

• sufficient rate and sufficient energy
• sufficient surface area and correct orientation
• sufficient catalyst and sufficient energy
• sufficent energy and correct orientation

More collisions correspond to a: 

• Faster reaction rate  
• Slower reaction rate
• Constant reaction rate 
• None of the above

Tags

NGSS.HS-PS1-5

Which of the following factors increases only the effectiveness of collisions?

• temperature

• catalysts

• concentration

• surface area

Reaction rate means...

• amount of product formed
• speed of reaction
• concentration of reacting particles
• combining reactants with products

Tags

NGSS.HS-PS1-5

Why does a higher temperature increase the rate of a reaction?

• it increases both the frequency and energy of particle collisions
• it only increases the frequency of particle collisions
• it only increases the energy of particle collisions
• it reduces the activation energy of the reaction

Tags

NGSS.HS-PS1-5

Which of the following increase the reaction rate?

• less surface area
• lower temperature
• an inhibitor
• increased concentration

Tags

NGSS.HS-PS1-5

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 H₂ was removed?

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

Tags

NGSS.HS-PS1-5