Question

value: 8
match the description to the terms.
a.
refers to reactions that absorb heat.
b. a quantity equal to the total heat content (thermal energy) of a system.
c.
refers to reactions or processes that release heat.
1.
enthalpy
2.
exothermic
3.
endothermic

Explanation:

• For part a: Endothermic reactions are defined as those that absorb heat from the surroundings. So a matches with 3 (Endothermic).
• For part b: Enthalpy is the thermodynamic quantity that represents the total heat content (thermal energy) of a system. So b matches with 1 (Enthalpy).
• For part c: Exothermic reactions or processes are those that release heat into the surroundings. So c matches with 2 (Exothermic).

Answer:

a. 3. Endothermic
b. 1. Enthalpy
c. 2. Exothermic