A reaction of the type A$++$ B$2-->$ products has a rate constant k equal to

$2\mathrm{.}8$ x $10-4$ dm$3$ mol$-1$ s$-1$ at $25\backslash$deg C and with a solution ionic strength of $1\mathrm{.}0$ x $10-3$ M$.$ Assume

the strength of the Debye$-$H$$ckel limit law and calculate the value of the rate constant with zero ionic strength value.