The half-life gets longer as the initial concentration increases in zero-order reaction.
The amount of time it takes for the concentration of a given reactant to reach 50% of its initial concentration is known as the half-life of a chemical reaction (i.e. the time taken for the reactant concentration to reach half of its initial value).
For zero order reaction:
The half-life is given as:
![t_{1/2}=\frac{[A]_{0}}{2k}](https://tex.z-dn.net/?f=t_%7B1%2F2%7D%3D%5Cfrac%7B%5BA%5D_%7B0%7D%7D%7B2k%7D)
where k is the rate constant of the reaction and ![[A]_{0}](https://tex.z-dn.net/?f=%5BA%5D_%7B0%7D)
is the initial concentration.
As we can see that the half-life is directly proportional to the initial concentration. Therefore, when the initial concentration increases the half-life gets longer.
For the first-order reaction,
The half-life is given as:
A first-order reaction's half-life is independent of the initial concentration.
For a second-order reaction,
The half-life is:
![t_{\frac{1}{2} }=\frac{1}{k[A]_{0}}](https://tex.z-dn.net/?f=t_%7B%5Cfrac%7B1%7D%7B2%7D%20%7D%3D%5Cfrac%7B1%7D%7Bk%5BA%5D_%7B0%7D%7D)
The initial concentration is inversely proportional to the half-life, so when the initial concentration increases the half-life will get shorter.
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Radioactivity another name for radioactive decay. Radioactivity refers to particles emitted from nuclei as a result of nuclear instability.
Using a thin stationary phase supported by an inert backing, thin layer chromatography (TLC) is a chromatographic technique used to separate the components of a mixture.
It can be carried out on an analytical scale to track the development of a reaction or on a preparative scale to purify minute quantities of a chemical. Because of its simplicity, comparatively low cost, great sensitivity, and rapid separation, TLC is an extensively used analytical method. Similar to all chromatography, TLC works on the premise that a chemical will have varying affinities for the mobile and stationary phases, which will influence how quickly it migrates. TLC aims to produce well-defined, well-separated spots.
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The substance that contains hydrogen that may be replaced by a metal is an acid~
Each Other and the sun but now a days we relied on our phones
