What are the two factors to look for when determining if the reaction is at equilibrium?

Forward and reverse reaction rates are equal and concentration is constant

Forward reaction rate is faster than the reverse and concentrations are equal

Forward and revers reaction rates are equal and concentration is equal

Forward reaction rate is faster than the reverse and concentration is equal

Identify the incorrect statement about achieving equilibrium.

achieved when product and reactant concentrations are equal

achieved when forward and reverse reaction rates are same

achieved when concentration of reactants is stable/constant

achieved when concentration ratio of reactants to products becomes stable, thus fixing the equilibrium constant (equilibrium position)

How do catalysts increase the rate of reaction?

the activation energy is lowered

The frequency of collisions is the increased

the energy of collisions is increased

Both the frequency and energy of collisions is increased

Which of the following are true? Assume this reaction: A is reactant concentration and B is product concentration.

The equilibrium constant lies to the right

At t2; the forward and reverse reaction rates are equal

at t1, the the concentration of the reactants is decreasing and the concentration of the products is increasing

At t3, there are more reactants than products

At t3; the amount of reactants and products are equal

U12 Kinetics and Equilibrium

Quiz

•

Chemistry

•

9th - 10th Grade

•

Practice Problem

•

Medium

•

NGSS

HS-PS1-5, HS-PS1-4, HS-PS1-6

+1

Standards-aligned

Michael Voss

Used 822+ times

FREE Resource

21 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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

concentration

surface area

temperature

reactants

Tags

NGSS.HS-PS1-5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Increasing the concentration increases the speed of reaction by

lowering activation energy

increasing collisions

speeding up the reactants

exposing more reactant

Tags

NGSS.HS-PS1-5

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following slows down the rate of a chemical reaction?

Place the reactants in hot water

Place the products in ice bath

Place the reactants in a ice bath

Keep stirring the reactants with a stirring rod

Tags

NGSS.HS-PS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?

Red, because the activation energy is larger

Blue, because the activation energy is lower

both reaction progress at the same rate

Tags

NGSS.HS-PS1-4

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why does a higher concentration increase the rate of reaction?

it increases the amount of reactants

it lowers the activation energy

it increases the energy of particle collisions

it increases the frequency of particle collisions

Tags

NGSS.HS-PS1-5

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes an effective collision?

When molecules collide.

When molecules collide with the proper orientation.

When molecules collide with proper orientation and enough kinetic energy.

High Temperature.

Tags

NGSS.HS-PS1-5

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U12 Kinetics and Equilibrium

21 questions

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

Increasing the concentration increases the speed of reaction by

Which of the following slows down the rate of a chemical reaction?

The following graph shows two different reaction pathways for the same overall reaction at the same temperature. Which pathway is slower and why?

Why does a higher concentration increase the rate of reaction?

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

What makes an effective collision?

The minimum amount of energy needed for colliding particles to react is called

What type of reaction is this?

What letter represents the activation energy?

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