Show and explain the calculation process to work out the final values, and consider three significant figures. if necessary, use the gas constant, r = 8.31 j k-1 mol-1, the faraday constant, f = 96,500 c mol-1, the temperature, t = 298 k, the planck constant, h = 6.63 x 10-34 j s, and the mass of electron, m = 9.11 x 10-31 kg.

fund 4) consider assembling a tandem photocatalytic water splitting (2h2o → 2h2 + o2) cell. assuming that each photo-induced interfacial reaction requires gibbs free energy difference of < -0.25 ev (δg: < -0.25 ev), select two appropriate semiconductors, and complete the cell assembly. explain how the cell functions. estimate the maximum practical theoretical solar-to-hydrogen (sth) conversion efficiency under am1.5g, one sun condition (100 mw/cm2)

Consider the particle-in-a-box problem in 1d. a particle with mass m is confined to move freely between two hard walls situated at x = 0 and x = l. the potential energy function is given as (a) describe the boundary conditions that must be satisfied by the wavefunctions ψ(x) (such as energy eigenfunctions). (b) solve the schr¨odinger’s equation and by using the boundary conditions of part (a) find all energy eigenfunctions, ψn(x), and the corresponding energies, en. (c) what are the allowed values of the quantum number n above? how did you decide on that? (d) what is the de broglie wavelength for the ground state? (e) sketch a plot of the lowest 3 levels’ wavefunctions (ψn(x) vs x). don’t forget to mark the positions of the walls on the graphs. (f) in a transition between the energy levels above, which transition produces the longest wavelength λ for the emitted photon? what is the corresponding wavele

Hen a gfci receptacle device is installed on a 20-ampere branch circuit (12 awg copper), what is the minimum volume allowance (in cubic inches) required for conductor fill for each conductor in the outlet box?

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?