Which of the following is false about corrosion? O The loss or conversion into insoluble compound of the surface layers of a metal in contact with a liquid. The loss or conversion into insoluble compound of the surface layers of a metal in contact with only air at high temperature. Metals or semiconductors in contact with aqueous solution or humid air at normal temperatures may corrosion. The corrosion of one metal caused by another in an electrochemical process driven by the potential difference between the two metals. Erosion corrosion is a result of the combined effect of chemical attack and mechanical abrasion.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
ElectrocheElectrochemistrymistry
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