Determine if the equation is endothermic or exothermic examples

There are a couple of ways todetermine if a reaction is exothermic or endothermic. Endothermic meaning that heat is added to the reaction to make the reactants interact and exothermic meaning heat is released during the reaction between the two reactants.

In endothermic reactions you can find a triangle above the arrow.

Solid to liquid

Explanation:

Entropy is a state of randomness or disorderliness of the particles of a system. Some part of the heat energy of a system is related to the state of disorder or randomness of the particles of the system.

The entropic level of a system depends on two of major factors:

1. Temperature: Entropy increases with temperature rise due to the fact that the randomness of the particles of a system increases at a higher temperature.

2. Physical state of matter: The increasing order of entropy is:

Solid < Liquid < Gas

Gases are the most disordered and have the highest entropy. In moving from solid to liquid to gas, entropy of a system would increase.