Question

What are thermal decomposition reactions? Explain with an example.

Answer 1

We need to know that the redox reaction is one of the types of the type of the type of chemical reaction. In this reaction reduction followed by oxidation in the reactants. The oxidation means the addition of oxygen or the removal of hydrogen or loss of electrons. The reduction means the addition of hydrogen or the removal of oxygen or the gain of electrons. The abbreviation of emf is electromotive force.

Complete answer:
The thermal decomposition reaction is one type of chemical reaction. In this type of thermal decomposition reaction, products will come due to decomposition of the reactants is the reason for the thermal decomposition.
The decomposition of zinc carbonate is a good example of the thermal decomposition reaction.
The decomposition of zinc carbonate gives zinc oxide and carbon dioxide.
The chemical reaction for decomposition of zinc carbonate is below,
$ZnC{O_3} \to ZnO{\text{ }} + {\text{ }}C{O_2}$

Note:
We have to know that in chemistry thermodynamics is one of the important topics for monitoring the reaction. In thermodynamics, the word meaning is thermos means heat and dynamic means flow. In thermodynamics we study the flow of the heat in the chemical reaction. In this topic we focus on three main things. There are systems, surroundings and boundaries. We consider our reaction system and environment to be surrounding and in between the junction is the boundary. In thermodynamics, enthalpy is an important term. The enthalpy depends on the physical nature of the reactant. The unit and sign of the enthalpy is very important for chemical reaction. If the sign of enthalpy is negative, the reaction is exothermic. The sign of enthalpy is positive, the reaction is endothermic. If the chemical reaction is reversed, we will find out by using signs of enthalpy.