Which statement regarding the relative energies of monochromatic light with with λ = 800 nm andmonochromatic light with λ = 400 nm is correct? (a) 800 nm light has half as much energy per mole of photons as 400 nm light.(b) 800 nm light has the same energy per mole of photons as 400 nm light.(c) 800 nm light has twice as much energy per mole of photons as 400 nm light.(d) no conclusion may be drawn regarding the relative energy per mole of photons without knowing the intensity of the light.

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

Surface currents are caused by blank space . question 14 options: surface currents are caused by? differences in water temperature high salinity differences in density wind forces

Adilute aqueous potassium nitrate solution is