Given,
v2vp=2RTboomnMm
but
v2boom=3RTboomnMm=v2rms
then in order for vrms→vvp temperature has to change by,
Tboom→32Tboom such that,
v2vp=2RnMm32Tboom=3RTboomnMm=v2boom
So,
Tvp=32Tboom; temperature is increased and the distribution shifted right until vp is now vrms previously, which was numerically, vboom.
It is wrong to use,
v2boom=32v2p
and so,
Tboom=v2boom∗molarmass∗10−33∗8.3144
Tvp=v2p∗molarmass∗10−32∗8.3144
Tvp=23v2boom∗molarmass∗10−32∗8.3144
Tvp=Tboom
In this case,vp replaces vrms on the same velocity probability distribution, the temperature of the profile remains the same. vboom is still at vrms. What is needed is to increase temperature such that vp=vboom, on a new distribution.
Have a nice day.