Reaction Rates/ Orders

Reaction Rates/ Orders

10th - 12th Grade

9 Qs

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Reaction Rates/ Orders

Reaction Rates/ Orders

Assessment

Quiz

Chemistry

10th - 12th Grade

Medium

Created by

Julian Dubois

Used 10+ times

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

What is the best definition of rate of reaction?

The time it takes to use up all the reactants

The rate at which all the reactants are used up

The increase in concentration of a product per unit time

The time it takes for one of the reactants to be used up

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What two factors govern whether a collision between reacting particles will be effective?
orientation and potential energy 
kinetic energy and temperature 
kinetic energy and orientation 
potential energy and kinetic energy 

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

More collisions correspond to a: 
Faster reaction rate  
Slower reaction rate
Constant reaction rate 
None of the above

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following is NOT a factor affecting reaction rate?
temperature
catalysts
particle size
polarity

5.

MULTIPLE CHOICE QUESTION

1 min • 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

6.

MULTIPLE SELECT QUESTION

1 min • 1 pt

Which of the following increase the reaction rate?

less surface area

lower temperature

increasing pressure

increased concentration

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the activation energy?
The energy of the products
The energy of the reactants
The minimum energy needed by the reactants to form the products.
The energy lost in the reaction

8.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

Consider the following data for the reaction:

A+2B → C+D

Deduce the order of reaction with respect to A and with respect to B

A is first order and B is second order.

A is second order and B is first order.

A is first order and B is first order.

A is second order and B is second order.

9.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

Consider the following data for the reaction:

A+2B → C+D

Work out a value for the rate constant of this reaction with units.

10 mol-2dm6s-1

10 mol-dm3s-1

5 mol-2dm6s-1

5 mol-dm3s-1