Unit 16 Review

Front

What happens to the temperature of a solution during an endothermic reaction?

Back

The solution temperature will drop as the endothermic reaction absorbs heat from the surrounding water molecules.

Front

What is calorimetry?

Back

Calorimetry is the study of heat flow between a system and surroundings by way of measuring temperature changes.

Front

What occurs when a hot object is placed in a cooler substance?

Back

Heat will flow from the hot object to the cooler substance until thermal equilibrium is reached.

Front

Which substance heats up slower: water, lead, granite, or iron?

Back

Water heats up slower than lead, granite, and iron.

Front

What determines the average kinetic energy of a substance?

Back

The average kinetic energy of a substance is determined by its temperature.

Front

What is the relationship between temperature and kinetic energy?

Back

As temperature increases, the average kinetic energy of the particles in a substance also increases.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings.

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings.

Front

How does heat transfer occur between two substances?

Back

Heat transfer occurs from the substance at a higher temperature to the substance at a lower temperature.

Front

What is thermal equilibrium?

Back

Thermal equilibrium is the state in which two substances in contact no longer transfer heat to each other.