Reaction Rate Lesson

All chemical reactions happen at the same speed.

• true

• false

Tags

NGSS.HS-PS1-5

Which of the following speeds up a reaction?

• sufficient energy

• collision

• catalyst

• intermolecular force of attraction

Tags

NGSS.HS-PS1-5

1. Grinding tablet into powder increases the rate of its reaction due to increased ________

• concentration

• pressure

• temperature

• surface area

Which of the following decreases reaction rate?

• increased temperature

• increased concentration

• adding catalyst

• bigger particle size

Tags

NGSS.HS-PS1-5

Calculate the reaction rate (M/s) if the concentration of a product in a reaction increases from 0.3 mole/L to 0.5 mole/L in 10 seconds.

• 0.02 M/s

• 0.06 M/s

• 0.04 M/s

• 0.08 M/s

Tags

NGSS.HS-PS1-5

1. Which of the following is inversely related to reaction rate?

• Concentration

• Pressure

• Temperature

• Time

Tags

NGSS.HS-PS1-5

If the concentration of a reactant in a reaction decreases from 0.6 mole/L to 0.2 mole/L in 10 seconds. Calculate the reaction rate.

• 0.02 M/s

• 0.06 M/s

• 0.08 M/s

• 0.04 M/s

Tags

NGSS.HS-PS1-5

Which of the following increases reaction rate?

• lowering concentration

• lessening the amount of solvent

• smaller particle size

• reduced surface area

Tags

NGSS.HS-PS1-5

Which of these does NOT affect reaction rate?

• temperature

• particle size

• container

• catalyst

Tags

NGSS.HS-PS1-5

Which of the following is inversely proportional to reaction rate?

• particle size

• temperature

• concentration

• pressure

Tags

NGSS.HS-PS1-5