Kinetics and Equilibrium

What criteria must be met for reactant collisions to result in a successful product?

• The reactants must collide with each other

• The reactants must collide with enough energy and be in the right positions

• The reactants must have enough energy to form the activated complex

The rate of a reaction increases as temperature__________________.

• Decreases
• Increases
• Stays the Same

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NGSS.HS-PS1-5

Smaller particle size allows for a _________ surface area to be exposed for the reaction.

• larger
• smaller

Increase in temperature of the reactants can do one of the following

• Slow collision frequency
• Allow less effective collision between the particles
• Cause particles to lose speed
• Increase collision between the particles thus increasing the rate.

Tags

NGSS.HS-PS1-5

Grinding a seltzer tablet into powder increases the rate of reaction due to increased

• concentration
• surface area
• temperature
• reactants

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NGSS.HS-PS1-5

Exothermic reactions release heat to the surroundings.

• true
• false

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NGSS.HS-PS1-4

Increasing the concentration of the reactants will slow down the reaction.

• false 
• true

Tags

NGSS.HS-PS1-5

Products will form faster if____________

• the particle size of the reactants are larger.
• temperature is decreased.
• concentration of the reactants are increased.
• the reaction is not stirred.

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NGSS.HS-PS1-5

What happens to the collisions when you increase the pressure?

• Less collisions

• More collisions

• No change in the number of collisions

Tags

NGSS.HS-PS1-5

Pick the TWO (2) options that will INCREASE the rate of a reaction.

• Reducing Heat

• Adding Catalyst

• Adding Heat

• Removing Catalyst

Tags

NGSS.HS-PS1-5