Question

a cook uses a microwave oven to heat a meal. The frequency of the radiation is 2.45 x109 s-1. what is the energy of one mole of photons of this microwave radiation

Answer 1

A:- Equation for the energy of a photon, E=hv

where, E=energy of photon

           h=planks costant ( 6.62607004 × 10^-34 )

           v=frequency of radiation ( 2.45 x10⁹ s^-1)

         E = ( 6.62607004 × 10^-34 )( 2.45 x10⁹ )

        E = 1.6233871598 x 10^-24J

    1 mole of photons has 6.0221 x 10²³ photons, hence the energy of one mole of photons

        E = (1.6233871598 x 10^-24J ) (6.0221 x 10²³)

        E = 0.97761998 J