Work function units

[Diana_Diep2I]

Are work function units always supposed to be in Joules? So we convert if we're given kJ/mol like in the practice midterm questions right?

[Jason Wu 1E]

I think it really depends on the context of the question and what you are trying to solve. Within the practice midterm kJ per mole is used which may be needed to be converted to Joules per photon with dimensional analysis to solve the problem. However overall, when stating an answer that has energy, the SI Unit for it will always be Joules.

[Emma Popescu 1L]

Yes, the work function should always be in Joules so the units can later cancel out

[Joanne Kang 3I]

Yes. Work functions should always be in Joules and then you most likely also convert the moles to atoms as well(with Avogadro's num).

[Kylie Lim 4G]

I think since you're likely to be using it with planck's constant, it's safest for units to be in joules

[nehashetty_2G]

I have also seen questions that give the work function in the units eV, and in that case just remember that you can convert from eV to Joules using the conversion factor give on the conversion sheet which is 1ev is equal to 1.602 × 10-19 J.