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.