A constant is a fixed value that does not change during the execution of a program. Constants are used to store values that are not meant to be modified. They provide a way to give a meaningful name to a value and make the code more readable and maintainable.
for variables x and y and constanat k -
The web is not a constant; it is dynamic and constantly evolving. New technologies, standards, and user behaviors continually shape its development. Websites are frequently updated, and new content is added regularly, reflecting changes in trends, information, and user needs. Additionally, the underlying infrastructure of the web, including protocols and frameworks, is also subject to change and improvement over time.
The ionic product constant of water, Kw, is temperature dependent because the dissociation of water into hydronium ions (H3O+) and hydroxide ions (OH-) is an endothermic reaction. As temperature increases, more water molecules dissociate into ions, leading to an increase in the concentration of H3O+ and OH- ions, thus affecting the value of Kw.