AP Chemistry TSNF Day 4

What are the 2 characteristics that an effective collision must have? SELECT TWO

• Enough energy to overcome E_a

• Particles in the correct orientations

• Particles must be in the liquid or gas state

• Appropriate intermediates present

• Particles must be moving slow enough to allow bond formation

What is the rate law for the reaction with this slow elementary step? A + A --> B + B

• rate = k[A]²

• rate = k[B]²

• rate = k[A][B]

• rate = k[A]

Tags

NGSS.HS-PS1-5

What is the rate law for the reaction with this slow elementary step? A --> B + C

• rate = k[A]²

• rate = k[B]²

• rate = k[A][B]

• rate = k[A]

Tags

NGSS.HS-PS1-5

What is the rate law for the reaction with this slow elementary step? A + 2B --> D + C

• rate = k[A]²

• rate = k[A][B]²

• rate = k[A][B]

• rate = k[A]

Tags

NGSS.HS-PS1-5

What is NOT a way to speed up a reaction

• Add a catalyst

• Decrease the volume

• Increase the concentration of reactants

• Increase surface area of the solid

• Decrease the pressure

Tags

NGSS.HS-PS1-5

Which curve represents the most particles in this Maxwell-Boltzmann curve (# of particles vs. speed)?

• Black (peak on the left)

• Red (peak in the middle)

• Blue (peak on the right)

• They all have the same number of particles

Which curve in this Maxwell-Boltzmann distribution represents the highest proportion of particles moving the fastest (# of particles vs. speed)?

• Black (peak on the left)

• Red (peak in the middle)

• Blue (peak on the right)

• All particles are moving at the same speed

Which curve in this Maxwell-Boltzmann distribution would represent the a gas with the highest molar mass?

• Black (peak on the left)

• Red (peak in the middle)

• Blue (peak on the right)

What order of reaction has a half-life that does not change regardless of the initial concentration?

• Zero

• First

• Second

• Third

Losing electrons is ________________, gaining electrons is ________________

• oxidation, reduction

• reduction, oxidation

Tags

NGSS.HS-PS1-7