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1. During photosynthesis chlorophyll a absorbs light of 440 nm and emits light of 670 nm.

a) what is the energy in joules of a 440 nm photon?

b) what is the energy in joules of a 670 nm photon?

2. What is the wavelength, nanometers, of a photon that has energy of 6.7 *10^-19 joules?

3. arrange the following in increaing order of energy: radio waves, x-rays, red light from a neon sign, microwaves in your microwave oven, ultraviolet light from a UV lamp.

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  • Category:- Chemistry
  • Reference No.:- M9462371

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