hw1_solution - 2.1 A 30441 Orin is used to form a gasfighl...

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Unformatted text preview: 2.1. A 30441 Orin; is used to form a gasfighl seal in a high-vacuum chambet. Th: ring is fanned from a 80-mm length at 15-mm4i‘iamelcr wilt- Calculate the number of gnld alums in the (Swing. )V r. -3 [E k‘/ VG‘S)‘ 1‘12“” 3’4“»: ‘80“ M W i—Swa‘m 1' x ( a? J x o. 99.2: ”mm ”£9734“ = E- 53310}, W 2.10. The orbital elcctmns of an atom can be cjecled by txposure lo a beam of clectromagnetic radiation. Speci-ficaiiy. m electron can be ejected by a photon with energy smaller Ihan or equal to the chateau“: binding energy Given that the. phaion cnugy (E) is equal to hc/A, where h is Pianck‘s canstant. c tbs: speed of light. and A the waveicngtb. calming the maximum wavelength of radiation {correspond-‘ ing to the minimum energy) uncanny IO eject I 1: electron from a C ‘1 alum. (Se: figurc 2.3.) Fun F304. 2.3,, [5}: 213.94% = (0.“ :4 nod’msk’maum is. A) (-73.3. 9: VII J/G. 2421a,": V) = 4.57:1!0' 0v! 1 Jun/'O't-w a 4. 57am 2.15 So In“. we hm conccuumd on the coulomb‘ac Iowa at autism between ions. But like inns npni nab can. A neuuweighbur par of Na" ion: in Figure 2.5 are manned by : dismiss of flat). When a; is (kind in Him: 2.7" Calcuiu: the mama-1c (are: of “punish Mum “m n pm oflike inns. [E F5.“ _, Amiga”) G 5 _.. (Ma’ v... /c2(+i)éJma"’c)m)faJs xm“”c) (2)(D.378 xia'qm)a = —- l.47x/0"N 2.1; Calculus the coulombic tom of autumn human C31? and 01" in C40. which has the. NlCl-typ: mum; Fm firrhi‘w 5” 12:3”; 0./0£ AM i {03' 50- A’s-2h“. '77: an, an: raar ”To" = Odfifiaufal‘JJhml 0.335.... F; = .. (7ND,Vu-/C)G£fi.£wf'IC)(-1)(aflwa’”c) M (0.23! 2:104... ) '1 ’ #«3 :10 "A! PP 2 6 Calculate. the minimum radius ratio for a coordination number of {a} 4 and (b) 6. (54:: Example 2.7.) m .. Inna 'R 5‘ [035‘ {rte Fame. 2‘”) 8:». 49.1.1)- .3... 3 r+’R 6.3:“ r + an“? - ‘R (A) - 5 6:45“ 3.3.. 45's—L HR 0.197 r- 4- 9.70712 a? 3M3, fih‘} -,§ 1:: 0.414- Q6: Calculate the molecular weight of a polyethylene molecule with n=5 00. H 5/ véwL ‘6’ 3 n “137/0 H H ...
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