Factors affecting speed of reactions

Presentation

•

Chemistry

•

10th Grade

•

Practice Problem

•

Easy

Huang Zhijie

Used 4+ times

FREE Resource

4 Slides • 13 Questions

Surface Area

Multiple Choice

Which of the following has a larger surface area?

lump

grains

Drag and Drop

The larger surface area of these

pieces of solid results in

frequency of

collisions with the other reacting particles.

Drag these tiles and drop them in the correct blank above

smaller

higher

effective

lower

faster

energetic

bigger

Drag and Drop

This results in

collision. Thus the speed of reaction is

when smaller solid particles are used.

Drag these tiles and drop them in the correct blank above

higher

frequency

effective

faster

slower

energetic

lower

Temperature

Dropdown

Particle has

speed at higher temperature. The particles also have

average energy.

Drag and Drop

This results in

collision. Thus the speed of reaction is

at a higher temperature.

Drag these tiles and drop them in the correct blank above

higher

frequency

effective

faster

slower

energetic

lower

Concentration of solution

Labelling

Label which beaker has more particles in the same volume of solution, which beaker has the higher concentration

Drag labels to their correct position on the image

Higher concentration

More particles in the same volume

Dropdown

When the concentration of a reactant is increased, there are

particles in a given volume of solution. The particles are

together.

Dropdown

As the particles are closer together, the

collisions

, This results in a higher speed of reaction.

Pressure of gases

Dropdown

When the pressure of a gas is increased, there are

space for the particles to move. The particles are

together.

Dropdown

As the particles are closer together, the

collisions

, This results in a higher speed of reaction.

Multiple Choice

A strip of magnesium metal is added to some hydrochloric acid. Which of the following will not increase the speed of the reaction?

use magnesium powder instead of strip

use an acid of higher concentration

heat up the acid

increase the pressure of the acid

Multiple Choice

In order to increase the speed of reaction, we can increase the pressure of ____ reactants.

solid

liquid

gas

aqueous

Multiple Choice

Only reactions that involve ___ will the speed of reaction be affected by pressure.

solid

liquid

gas

aqueous

Surface Area

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