Question

Question #f5014

Answer 1

`E_(mol)=21.13 *10^5J`

Explanation:

1 mol = Avogadro's number = `=6,02* 10 ^23` photons
Energy 1 photon `E=h* nu= hc/lambda`
`lambda=565 nm=565 *10^-9m` wave length
`h=6.62 *10^-34J*s` Planck constant
`c=3* 10^9m/s` speed of light

`E(dim)= Js*m/s* 1/m=J`
`E=3.51*10^-18 J`

`E _(mol) =N_A*E`
`E _(mol)=6.02*10^23*3.51*10^-18=21.13 *10^5J`