What is the order of an elementary reaction?
What is the order of an elementary reaction?
The exponents, which can be fractional, are called partial orders of reaction and their sum is the overall order of reaction. In a dilute solution, an elementary reaction (one having a single step with a single transition state) is empirically found to obey the law of mass action.
Can a zero order reaction be elementary?
∙ A zero order reaction is not necessarily an elementary reaction. RDS of a complex reaction may also have zero order.
What is half life period of a reaction?
The half-life of a reaction, t1/2, is the amount of time needed for a reactant concentration to decrease by half compared to its initial concentration. Its application is used in chemistry and medicine to predict the concentration of a substance over time.
What is the half life of zero-order reaction?
Zero-Order Reactions
| Zero-Order | First-Order | |
|---|---|---|
| plot needed for linear fit of rate data | [A] vs. t | ln[A] vs. t |
| relationship between slope of linear plot and rate constant | k = −slope | k = −slope |
| half-life | t1/2=[A]02k | t1/2=0.693k |
| Table 22. Summary of Rate Laws for Zero-, First-, and Second-Order Reactions | ||
What is meant by half life?
Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive …
What is the beta decay equation?
Beta decay occurs when, in a nucleus with too many protons or too many neutrons, one of the protons or neutrons is transformed into the other. In beta minus decay, a neutron decays into a proton, an electron, and an antineutrino: n Æ p + e – +.