Question

1.Compare Endothermic reactions to exothermic reactions (Define each and list 2 characteristics for each. Fill in the table below.-ENDOTHERMIC                              -EXOTHERMIC•Positive H Value                              •Negative H •ValueAbsorbs heat                              •Releases Heat•Products have higher energy                              •Products have a lower energy

Answer 1

Endothermic reactions absorb heat and have higher energy products, while exothermic reactions release heat and have lower energy products.

Step-by-step explanation:

Endothermic and exothermic reactions can be thought of as having energy as either a reactant or a product. In endothermic reactions, heat is absorbed from the surroundings, resulting in a positive change in enthalpy (AH). On the other hand, exothermic reactions release heat into the surroundings, leading to a negative change in enthalpy. Two characteristics of endothermic reactions are: they have a positive AH value and the products have higher energy than the reactants. In contrast, exothermic reactions have a negative AH value and the products have lower energy than the reactants.

Answer 2

When the enthalpy is positive (H > 0), the reaction is endothermic, that is, it absorbs energy.

When the enthalpy is negative (H< 0), the reaction is exothermic, that is, it releases energy.

Therefore, the correct matches are

Endothermic:

• Positive H Value.

,

• Absorbs Heat.

,

• Products have higher energy.

Exothermic:

• Negative H Value.

,

• Releases Heat.

,

• Products have lower energy.