Endothermic and Exothermic Assessment

Front

What is an endothermic reaction?

Back

An endothermic reaction is a chemical reaction that absorbs heat from its surroundings, resulting in a decrease in temperature.

Front

What is an exothermic reaction?

Back

An exothermic reaction is a chemical reaction that releases heat to its surroundings, resulting in an increase in temperature.

Front

What happens to temperature in an endothermic reaction?

Back

The temperature decreases because heat is absorbed from the surroundings.

Front

What happens to temperature in an exothermic reaction?

Back

The temperature increases because heat is released to the surroundings.

Front

What is enthalpy change in an endothermic reaction?

Back

The enthalpy change is positive, indicating that energy is absorbed.

Front

What is enthalpy change in an exothermic reaction?

Back

The enthalpy change is negative, indicating that energy is released.

Front

Give an example of an endothermic process.

Back

Baking bread and cooking an egg are examples of endothermic processes.

Front

Give an example of an exothermic process.

Back

Burning wood or combustion of fuels are examples of exothermic processes.

Front

What is the significance of the temperature change in chemical reactions?

Back

Temperature change indicates whether a reaction is endothermic or exothermic.

Front

How can you identify an endothermic reaction in a lab setting?

Back

If the temperature of the reaction mixture decreases, it indicates an endothermic reaction.