Timeline for Why reaction rate has to be necessarily positive?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 2 at 2:08 | answer | added | ACR | timeline score: 1 | |
| Jul 1 at 15:23 | comment | added | Maurice | A reaction rate has to be positive. If a reaction rates is negative, it would mean that the amount of reactant is increasing. This cannot happen, by definition. | |
| Jul 1 at 15:15 | comment | added | PAEP | The reaction rate provides you with the change of concentration of reactants and products. A reactant decrease in concentration while a product increases its concentration. The rate of disappearance of a reactant is negative, while the rate of formation of a product is positive. You can calculate the rate of reaction using the concentration of reactants or products, but it must give you the same number. | |
| Jul 1 at 11:03 | comment | added | porphyrin | If $A\to B$ do you mean why do we write $dA/dt=-kA$ or do you mean why is the rate constant $k$ not negative? | |
| Jul 1 at 10:07 | comment | added | Poutnik | Negative rate means the negative net rate of the reaction in forward sense and positive net rate in backward sense. But the rates of forward and backward reactions are never negative. | |
| S Jul 1 at 9:35 | review | First questions | |||
| Jul 1 at 15:15 | |||||
| S Jul 1 at 9:35 | history | asked | Anvi Mahajan | CC BY-SA 4.0 |