Reaction Kinetics

What factor primarily influences the reaction rate?

• Temperature

• Color

• Density

• Volume

Tags

NGSS.HS-PS1-5

Which of the following increases the rate of a chemical reaction?

• Decreasing the surface area

• Increasing the concentration

• Lowering the temperature

• Adding an inert gas

Tags

NGSS.HS-PS1-5

What role does a catalyst play in a reaction?

• Increases the activation energy

• Slows down the reaction

• Lowers activation energy

• Acts as a reactant

Tags

NGSS.HS-PS1-4

In general, how does an increase in temperature affect the reaction rate?

• Decreases the reaction rate

• Increases the reaction rate

• No effect

Tags

NGSS.HS-PS1-5

Which factor does not affect the reaction rate?

• Pressure

• Concentration

• Color

• Surface area

Tags

NGSS.HS-PS1-5

What happens to the reaction rate when the concentration of reactants is doubled?

• Halves the reaction rate

• Triples the reaction rate

• Doubles the reaction rate

• Remains unchanged

Tags

NGSS.HS-PS1-5

In a reaction with a solid reactant, how does increasing the surface area of the solid affect the reaction rate?

• Increases it

• Decreases it

• No effect

An increase in pressure for a gaseous reaction will...

• Increase the reaction rate

• Decrease the reaction rate

• Have no effect

Tags

NGSS.HS-PS1-5

How does the presence of a non-reactive substance affect reaction rate?

• Increases it

• Decreases it

• No effect

Tags

NGSS.HS-PS1-5

Which type of reaction is generally more sensitive to temperature changes?

• Combustion

• Neutralization

• Redox

Tags

NGSS.HS-PS1-5