Match the following associations. 1. + ΔHexothermic endothermic 2. E2 < E¹exothermic endothermic 3. energy is absorbed exothermic endothermic 4. E2 > E¹exothermic endother…

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asked Dec 10, 2020 154k views

1 Answer

Chrissie · Answer 1 · 2020-12-17T02:30:15+0000

Step-by-step explanation:

When heat is absorbed by reactants in a chemical reaction then the reaction is known as endothermic reaction.

Whereas when heat is released by reactants in a chemical reaction then the reaction is known as exothermic reaction.

1. When
$\Delta H$ is positive then it means heat is absorbed by reactants and reaction is endothermic.

2. When
, this means energy of products is less than the energy of reactants. Therefore, it is exothermic in nature.

3. When energy is absorbed then reaction is endothermic.

4. When
, this means energy of products is greater than the energy of reactants. Therefore, it is endothermic in nature.

5. When [tex]\Delta H is negative then it means heat is released by reactants and reaction is exothermic.