WorksheetsRATE OF REACTION FORM 4
Total questions: 12
Worksheet time: 2mins
Which process describes a measurable rate of reaction?
Rusting
Respiration
Combustion
Photosynthesis
Which reactions has the highest rate of reaction?
Rusting of water pipe
Photosynthesis in green plant
Burning of a small piece of charcoal in the air
Formation of stalactites and stalagmites
Which of the following explains the meaning of effective collision?
The collision where its energy is less than the activation energy
The collision that has a low energy
The collision which takes place before a reaction
The collision that causes a reaction
Magnesium reacts with acid to produce hydrogen gas, H2.Which solution would give the highest initial rate of reaction?
100 cm3 of 1.0 mol dm-3 of nitric acid, HNO3
100 cm3 of 1.0 mol dm-3 of hydrochloric acid, HCl
100 cm3 of 1.0 mol dm-3 of sulphuric acid, H2SO4
100 cm3 of 1.0 mol dm-3 of ethanoic acid, CH3COOH
The following equation shows the reaction between calcium carbonate, CaCO3 and hydrochloric acid, HCl:
CaCO3(aq) + 2HCl(aq) → CaCl2(aq) + CO2 (g) + H2O(l)
Which of the following is the suitable method to determine the rate of reaction?
Change in the temperature of the solution with time
Change in the volume of carbon dioxide gas with time
Change in the mass of water with time
Change in the concentration of hydrochloric acid with time
Meat cooks faster if it cut into _________ sizes.
Larger
Smaller
Why does breaking up a solid reactant increase the rate of reaction?
it creates more solid
it creates more energy
it increases the total surface area
it increases the concentration
Increasing the temperature gives particles more __________.
time
Kinetic energy
space
frequency
Catalyst helps to
increase the amount of product obtained
to increase the activation energy
provide an alternative reaction route
decrease the frequency of collision
In the refrigerator, the ______ temperature decreases the growth of bacteria that
cause food decay.
higher
lower
Increase in temperature causes the particles to
slow down
move faster
stay apart from each other
move in the correct order
Which factors affect the rate of a reaction?
Kinetic energy
Total surface area
concentration
Volume
