Which One Of The Metal Will Be Useful For The Photoelectric Cell Working With
What is relation between work. The data were obtained by the fowler absolute method on polycrystalline. The work function of lithium is 2.5 ev.… | bartleby.
This Means That To Remove The Outermost Electron From The Ground Shell Of A Lithium Atom, An Energy Of 2.3 Ev Is Required.
The work function of lithium is 2.3ev.what does it mean? The oxidation process results in a decrease of the work function as the lithium oxide covers the li surface (figure 3). Work function of lithium and copper are respectively 2.3ev and 4.
Which One Of The Metal Will Be Useful For The Photoelectric Cell Working With Visible Light ?
The volume and surface double layer terms which determine the work function of lithium are of the order of 2.2 and 0.3 ev, respectively, a result which supports the conclusion that the surface double layer makes a relatively small contribution to the work functions of the alkali metals. Such a decrease of the work function could be at a first view quite surprising, taking into consideration the electronegative nature of oxygen, which suggests an increase in the value of w f as it has been reported elsewhere. From laptops and cell phones to hybrids and electric cars, this technology is growing in popularity due to its light weight, high energy density, and ability to recharge.
Dual Nature Of Radiation And Matter.
The work function for lithium is 279.7 kj/mol (that is, it takes 279.7 kj of energy to remove one mole of electrons from one mole of li atoms on the surface of li metal). For polycrystalline silver a value of 4.26 ev has been measured, but for a single crystal a value of 4.74 ev has been measured for the (111) face, with intermediate values of 4.64 ev (100) and 4.52 ev. Ask questions, doubts, problems and we will help you.
The Relation Of Work Function (W) And Wavelength (Λ) Is Given As, W = Hv I.e., W = Hcλ.
Work function of lithium and copper are respectively 2.3 ev and 4.0 ev. Work function of lithium and copper are respectively `2.3 ev` and `4.0 ev`. The widely measured work function of lithium is about 2.95 e 3.1 ev, which agrees well with our calculation [65,67].