Chemistry - Enthalpy

Front

How do you calculate Enthalpy of a reaction?

Back

ΔH = ΔH_products - ΔH_reactants

Front

What type of reaction is characterized by the release of heat?

Back

Exothermic reaction

Front

Which statement is true regarding endothermic reactions?

Back

Temperature change is negative and enthalpy change is positive.

Front

Define 'Enthalpy' in the context of chemistry.

Back

Energy stored in the chemical bonds in a substance.

Front

Is the ΔH value in an endothermic reaction positive or negative?

Back

Positive.

Front

What is an exothermic reaction?

Back

A reaction that releases heat to its surroundings.

Front

What is an endothermic reaction?

Back

A reaction that absorbs heat from its surroundings.

Front

What does a positive ΔH indicate about a reaction?

Back

The reaction is endothermic.

Front

What does a negative ΔH indicate about a reaction?

Back

The reaction is exothermic.

Front

What is the relationship between enthalpy and temperature in an endothermic reaction?

Back

Temperature decreases as the reaction absorbs heat.