what is significance of Pseudounimolecular reaction
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If the concentration of one of the reactants remains virtually constant (if it is in large excess compared to the other reactants), its concentration can treated as a constant and can be grouped with the rate constant, to give a pseudo constant. If R is the reactant whose concentration is constant, then rate = k.[R].[M], becomes rate=k'.[M] . The second-order rate equation has now been reduced, by this, to pseudo-first-order rate equation. Thus the treatment to obtain the integrated rate law becomes much simpler.
here's ur answer!!
If the concentration of one of the reactants remains virtually constant (if it is in large excess compared to the other reactants), its concentration can treated as a constant and can be grouped with the rate constant, to give a pseudo constant. If R is the reactant whose concentration is constant, then rate = k.[R].[M], becomes rate=k'.[M] . The second-order rate equation has now been reduced, by this, to pseudo-first-order rate equation. Thus the treatment to obtain the integrated rate law becomes much simpler.
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