Science Form 3 Chapter 5 (Thermochemistry)

Front

Which reaction explains about exothermic reaction?

Back

Surrounding temperature increases

Front

Which statement is correct about endothermic reaction?

Back

Breaks the chemical bonds of the reactant

Front

Respiration is an exothermic reaction. Which of the following explains about the process?

Back

Release heat to the environment

Front

Which process does not involve the release of heat energy?

Back

Melting of butter

Front

Why is the sublimation process in dry ice endothermic?

Back

Dry ice absorbs heat from surroundings

Front

Endothermic is a reaction that absorbs heat.

Back

TRUE

Front

Breaking the chemical bond releases energy.

Back

FALSE

Front

What happens when heat energy is absorbed?

Back

Bond breakage occurs

Front

The diagram shows the set-up of apparatus for an experiment. Which statement is true about the reaction that occurred in the experiment?

Back

Heat energy is absorbed from the environment

Front

How can we identify that the absorption of heat has occurred?

Back

The surrounding temperature decreases