Step-by-step explanation:
Dehydration is a chemical reaction or a physical process that involves the removal of water or water molecules from a substance or a system. It can also refer to a condition that arises due to the excessive loss of water from the body, leading to a range of symptoms and health problems.
In a chemical sense, dehydration usually involves the elimination of a water molecule from a larger molecule or a mixture of molecules, resulting in the formation of a new compound or a more concentrated product. For example, the elimination of a water molecule from two molecules of ethanol produces ethylene gas in a process known as dehydration of ethanol.
In the context of the body, dehydration occurs when the body loses more water than it takes in, leading to a decrease in the body's water content. This can happen due to several factors, such as excessive sweating, diarrhea, vomiting, and inadequate fluid intake. Dehydration can lead to various symptoms, including thirst, dry mouth, fatigue, dizziness, and in severe cases, it can even lead to organ failure and death.