Enthalpy of Reaction

Enthalpy, Exothermic, and Endothermic Reactions

What is that lovely potential energy diagram I see to the right?

Multiple Choice

A leaf converts sunlight into sugar. Endothermic or exothermic?

• endothermic

• exothermic

Multiple Choice

Which reaction type is this?

• Exothermic

• Endothermic

Multiple Choice

Which reaction type is this?

• Exothermic

• Endothermic

Multiple Choice

Which reaction type is this?

• Exothermic

• Endothermic

Multiple Choice

Which reaction type is this?

• Exothermic

• Endothermic

Multiple Choice

Which reaction type is this?

• Exothermic

• Endothermic

Multiple Choice

Which reaction type is this?

• Exothermic

• Endothermic

Multiple Choice

Which reaction is an endothermic reaction

• A

• B

• C

• D

Multiple Choice

Which reaction is an exothermic reaction

• A

• B

• C

• D

Multiple Choice

A student lights a match. Endothermic or exothermic?

• exothermic

• endothermic

Multiple Choice

A student turns on their oven. Endothermic or exothermic?

• exothermic

• endothermic

Multiple Choice

Tiani throws her dough in the oven to bake bread. Endothermic or exothermic?

• exothermic

• endothermic

Multiple Choice

A puddle is evaporating in the sunlight. Endothermic or exothermic?

• exothermic

• endothermic

Multiple Choice

A leaf converts sunlight into sugar. Endothermic or exothermic?

• endothermic

• exothermic

Multiple Choice

The potential energy of the reactants was 100 kJ, while the potential energy of the products was 200 kJ. (hint: dH = products - reactants)

• - dH

• + dH

Multiple Choice

The potential energy of the reactants was 100 kJ, while the potential energy of the products was 200 kJ. (hint: dH = products - reactants)

• exothermic

• endothermic

Multiple Choice

The potential energy of the reactants was 200 kJ, while the potential energy of the products was 100 kJ. (hint: dH = products - reactants)

• - dH

• + dH

Multiple Choice

The potential energy of the reactants was 200 kJ, while the potential energy of the products was 100 kJ. (hint: dH = products - reactants)

• exothermic

• endothermic