In: Chemistry
You add B to a neat liquid of A in a dropwise fashion. A and B react in a bimolecular reaction step to form C, which precipitates. What order of the reaction will you observe, assuming the reaction to form C proceeds fast compared to the dropwise addition of A. Discuss why!
The sum of the powers of the concentration of the reactants in the rate law expression is called order of that chemical reaction.
The number of reacting species taking part in elementary reaction which must colloide simultaneously in order to bring about a chemical reaction is called molecularity of a reaction.
Bimolecular reactions involve simultaneous collision between two species,generally for bimolecular reactions the order will be Second order but if intermediate step is slow then it will be the rate determining step and it follows First order reaction,hence adding of B to A is a rate determing step and the order may be fractional or first order based on balanced chemical equation.