Question

give an example of thermal dissociation and electrochemical reaction​

Answer 1

Answer:

Thermal Dissociation

a chemical reaction in which a substance decomposes reversibly when the temperature is raised. A substance undergoing thermal dissociation may form several substances (2H2O ⇄ 2H2 + O2, CaCO3 ⇄ CaO + CO2) or a single, simpler substance (N2O4 ⇄ 2NO2, Cl2 ⇄ 2C1).

Electrochemical Reaction:

The galvanic cell has the capability of deriving electrical energy from spontaneous REDOX reactions that take place within the cell. The cell consists of two different metals connected together by a salt bridge.

Electrons will always flow from the oxidation half cell (the anode) to the reduction half cell (the cathode) - in other words, from the more negative half reaction to the more positive half reaction.

Another great example of an electrochemical process is corrosion. A piece of bare iron will rust quickly when exposed to moisture, the corrosion rate being enhanced by an electrochemical process in which a water droplet becomes a miniature galvanic cell in contact with the metal (it oxidizes the iron).

Iron supplies electrons at the edge of the droplet to reduce oxygen from the air - the iron surface inside the droplet acts as the anode for the process...

Explanation:

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Answer 2

Answer:

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Explanation:

THERMAL -A thermal decomposition reaction occurs when heat is applied to a compound causing it to decompose (break down) into multiple different chemical substances. An example is when baking soda (sodium bicarbonate) is heated. 2NaHCO3(s)→CO2(g)+H2O(g)+Na2CO3(s)

ELECTROCHEMICAL REACTION- An electrochemical reaction is one where either a chemical reaction produces an electric current, or where an electric current causes a chemical reaction to take place. In a galvanic cell a chemical reaction produces a current in the external circuit. An example is the zinc-copper cell.