Homework#4

[206190205]

A liquid is exposed to Infared radiation with a wavelength of 5.98 x 10 ^-4 cm. Assume that all the radiation is absorbed and converted to heat. How many photons are required for the liquid to absorb 43.45 J of heat?

I have found the amount of energy it is for one photon and I know I have to divide that by the total of photons, but would I have to change the 43.45 J to a different unit or can I just divide it like that?

[305981900]

I don't believe you don't have to convert the 43.5 J to a different unit since you would have calculated the energy of a photon. I believed you would have used an equation like this to find the energy of one photon: (6.629 x 10^-34) (3.00 x 10^8 m/s)/5.98 x 10 ^-6 m.