conditions necessary for rusting

Conditions for Rusting of Iron - The presence of water and oxygen is essential for the rusting of iron. Impurities in the iron, the presence of water vapor, acids, salts and carbon dioxide hastens rusting. Pure iron does not rust in dry and carbon d..

The presence of water and oxygen is essential for the rusting of iron. Impurities in the iron, the presence of water vapor, acids, salts and carbon dioxide hastens rusting. Pure iron does not rust in dry and carbon dioxide free air. It also does not rust..

Which of the following statements is not a necessary condition for two parallel line segments? => Two parallel line segments should have the same length. or Two parallel line segments should always be coplanar. or Two parallel line segments must not intersect. or None of the abo..

If p and q are two propositions, then the compound proposition, "if p then q" is known as conditional statement or implication. It is denoted by p q. p is called the antecedent (or hypothesis). q is called the consequent (or conclusion). Note: p q can be read as (i) If p then q (ii) ..

The criterion for a chemical change is the production of one or more new substances. Therefore, certain conditions should be met in order to bring about a chemical change. The necessary conditions are: 1) A minimum amount of energy needed to initiate a reaction (activa..

All the planets do not have life on them. Earth is the only planet in the solar system having life on it. This is because certain conditions or requirements are necessary to enable life to originate and flourish on a planet. They are: The planet should have elements like carbon,..

Identify the condition necessary for a function f ( x ) to satisfy the mean value theorem in the closed interval [ a , b ]. => f ( x ) should be continuous in ( a , b ), should be differentiable in [ a , b ] or f ( x ) should be continu..

Sometimes it is necessary in geometry to specify the location of all points satisfying one or more conditions..

Sometimes it is necessary in geometry to specify the location of all points satisfying one or more conditions. For example, location of set of points equidistant from two given points, location of set of points equidistant from a given point etc. This is done by considering a se..

Sometimes it is necessary in geometry to specify the location of all points satisfying one or more conditions. For example, location of set of points equidistant from two given points, location of set of points equidistant from a given point etc. This is done by considerin..