Considering the harmful effects of corrosion and rancidity ,suggest examples of preventing such harmful effects with supportive picture
Answers
Corrosion is defined as the natural process of damaging the metal by converting the refined metal to more chemically-stable metal such as oxides or hydroxides in the environment causing degradation of metals called rust. Rancidity is oxidation of fat cause by hydration which may cause disease related to cardiac arrest.
To make a metal corrosion free use drying agents and moisture barrier products.
To make food rancid free add antioxidants and stores the food in air tight container.
Explanation:
Corrosion - in case of metals and articles made of metals,it has been found that certain gases present in the atmosphere and moisture attack on the surface of the metal and destroying it , forming compounds and expose it for further action.
"This phenomenon of continuous chemical conversion of metal into their compounds and their removal from the surface by the action of its surrounding id known as corrosion.
Factors affecting corrosion - following factors influence corrosion.
1. Moisture - The amount of water present in the atmosphere is a very important factor.
2. Presence of dissolved oxygen - oxygen of the atmosphere is first dissolved at the surface by solution formation. This oxygen as a result of convection currents migrates through the solution till it reacts the thin film of the corrosion products.
3. Temperature - the increase in the temperature of atmosphere in the initial stages accelerate corrosion. .
Methods of corrosion control
1. Metal spraying
2. Hot dipping
3. Electroplating
4. Galvanization
5. Tinning