The absorbance features observed in the visible spectrum for curcumin is a result of an allowed optical excitation of an electron from the π-homo to the π*-lumo.

what is the energy change for this electronic excitation based on the spectrum? (hint: energy and wavelength are related by the equation e = hc/λ.)

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy