As the reaction of the type accompanied by decrease of randomness, the heat released is absorbed by the surroundings so that the entropy of the surroundings increases to such an extent that ΔS total is positive.
We know that in Endothermic Reaction heat is absorbed and in case of Exothermic reaction heat is released.
Example of Endothermic Reaction :
Photosynthesis
Cooking rice
Example of Exothermic Reaction is Combustion
Rice, potatoes and bread contain carbohydrates. During digestion, these carbohydrates are broken down into a simpler substance called glucose. Digestion follows respiration. During respiration, the glucose combines with oxygen in...
When quicklime or calcium oxide (CaO) reacts with water, slaked lime [Ca(OH)2] is formed. During this reaction, a large amount of heat is released. So, this reaction is an exothermic...
