iodine molecule dissociate into atoms after absorbing light of 4500 Angstrom .if one quantum of radiation is absorbed by each molecule,calculate the kinetic energy of iodine atoms,[bond energy of I2=240 Kj/mol and h=6.626*10^-34 J/sec]

Question

anonymous · Answer

@chmvijay

anonymous · Answer

@thomaster

anonymous · Answer

@.Sam.

chmvijay · Answer

first convert wavelength into Energy

anonymous · Answer

OKk

chmvijay · Answer

energy found from wavelenth  - bond energy will give you the KE

anonymous · Answer

what will be the formula for findin K.E?

chmvijay · Answer

nothing much like 1/2 mv^2 as we use inphysics
it just energy difference between the energy absorption - BOND ENERGY

anonymous · Answer

okkk m on it

anonymous · Answer

and V will be the frequency here? right? @chmvijay

chmvijay · Answer

LOL don't use that equation its physics equation that's what i said you not to use this

anonymous · Answer

OKKK! now i understand it will be the difference of those two energies

chmvijay · Answer

Kinetic energy=energy due to absorbed wavelength - Bond energy
                       = h* c/lamda              -  Bond energy

chmvijay · Answer

yup :)

chmvijay · Answer

after breaking the bond ( bond energy ),  whatever extra energy it is absorbed from light  it will be in the form of kinetic energy

anonymous · Answer

@chmvijay  i got the answer -2.35*10^-27 is that answer possible??

chmvijay · Answer

first energy due to wavelength how much you got let me know first

anonymous · Answer

4.4*10^-29 i got

chmvijay · Answer

i think we should divide final answer by Avogadro no to get for one molecule :)

anonymous · Answer

hmmm but is there any problem with the negative sign with the value got by difference?

chmvijay · Answer

u can neglect the sign though KE is released in the process

anonymous · Answer

ooOPS!

anonymous · Answer

@chmvijay 3.90*10^-51 i got?