Chapter 5: Thermochemistry

In an endothermic reaction, the temperature of the surroundings increases.

• TRUE

• FALSE

An exothermic reaction releases heat into the surroundings.

• TRUE

• FALSE

What is the chemical reaction involved in the burning wood in a fireplace?

• EXOTHERMIC REACTION

• ENDOTHERMIC REACTION

• NEITHER

What is the chemical reaction involved in the cooking of an egg on a stove?

• EXOTHERMIC

• ENDOTHERMIC

• NEITHER

The freezing of water is an exothermic reaction

• TRUE

• FALSE

A cold pack is activated by dissolving ammonium nitrate in water. What is the reaction involved?

• ENDOTHERMIC

• EXOTHERMIC

Plants absorb energy during photosynthesis. What is the reaction involved?

• EXOTHERMIC

• ENDOTHERMIC

• NEITHER

Photosynthesis in plants is an exothermic reaction.

• TRUE

• FALSE

In the process of melting of ice, what is the chemical reaction involved?

• ENDOTHERMIC

• EXOTHERMIC

The combustion of wood is an example of a ..... reaction

• EXOTHERMIC

• ENDOTHERMIC