1.

Which of the following will react fastest (produce more products in a given time) and which will react at the highest rate? A) 1 mol of A and 1 mol of B in a 1L vessel b) 2mol of A andmol of B in a 2L vessel c) 0.2 mol of A and 0.2 mol of B in a 0.1 L vessel.

Answer»


Solution :Fastest Reactants: The rate of reaction is directly proportional to the molar concentration of the REACTING species. Since the 2L vessel has 2 mol of A and 2 mol of B (maximum moles of the reactants), they will react fastest as given in OPTION (b).
HIGHEST reaction rate
Since the vessel in option c) has the maximum molar concentration of the reactants per unit volume, the reaction in vessel (c) will proceed at the highest rate.


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