Question

Determine the frequency and energy for light with a wavelength of 698.2 nm. E= kJ/mol What is the color of light with a wavelength of 698.2 nm? Refer to the electromagnetic spectrum as needed. Determine the wavelength and energy for light with a frequency of 5.761 x 1014 - 2 = E = kJ/mol What is the color of light with a frequency of 5.761 x 1014 s-?? Refer to the electromagnetic spectrum as needed.

Answer 1

. wavelength 698.2nm : 698.2x10 m de frequency c=2u 3x108 m/s = (698.2x10m) av Ja 4.2 x 10's E energy E ho E = [6.648 10 34 J. 5] x [3x108 m/3} 698.2x10 gm E = 2.8.81019 g E = 2.88 10 22 kJ the energy kJ/mol E = 2.8x1022 kJ - 6022x1023 mol E 4.64 X10 48 ks/mol Po find if Wavelength is 698.2 nm So colour of light is Red.