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- MCQP: 13-17 (page 184)i need help filling out Tcc and Tcw along with Perc. Diff....3. Show that in an ideal hexagonal-close-packed (hcp) structure, where the atomic spheres touch each other, the ratio c/a is given by :-()* ( 8 \ 1/2 = 1.633. (The hep structure is discussed in Section 7.) 4 The packing ratio is defined as the fraction of the total volume of the cell that is filled by atoms. Determine the maximum values of this ratio for equal spheres located at the points of simple-cubic, body-centered-cubic, and face-centered-cubic crystals.
- True/False The particle transport loss due to diffusion in a circular tube is dependent on tube diameter and particle diffusivity.Problem II There is a piece of 10 mm thick a-iron plate. This plate initially has hydrogen uniformly distributed inside with an initial concentration Co. Assume that there is no hydrogen in the air. The plate is left in the air and the hydrogen concentration varies with the time as follows: 4Co C(x, t) = (-9n²Dt\ 12 3nx sin еxp where / is the thickness of the plate. If we would like to remove 95% of the hydrogen from the plate, how long will it take when the plate is at 25 °C? The pre-exponential and activation energy for hydrogen in a-iron are 0.1 mm/s and 13,400 J/mol, respectively.Binding in solids Calculate the force of attraction between a Ca2 and an O2 ions where their centers are separated by a distance of 1.25 nm.
- . If a PLC, serving as load, uses a sinking input card, it needs a ( PNP / NPN ) proximity sensor.The thickness of the membrane that surrounds an alveolar sac is 300 µm. How long does it take (ms) for a molecule of oxygen to cross from one side of the alveolar sac to the other? Assume of 2.5*10^-6 m^2/s for O2 in the barrier. Assume 3d diffusion.The bond length in F2 is 1.417 Å, instead of twice theatomic radius of F, which is 1.28 Å. What can account forthe unexpected length of the F_ F bond?
- %ov li. A نقطة واحدة A first – order system and its response to unit step input as in Figure, what is the correct transfer * ?function Slop Step Response 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 2 4 6 8 10 12 14 16 18 Time (seconds) 1/(0.2 s+1) 1/(0.5 s+1) O 1/(s+1) 1/(2 s+1) O سيتم إرسال نسخ من ردودك عبر البريد الإلكتروني إلى العنوان الذي قدمته 3 صفحة 3 من II AmplitudeCV below shows the electrochemical behaviour of Species A that undergoes EC reaction at the electrode-electrolyte interface. Explain the electrochemical behaviour. The scan rates are A= 500mV/s, B= 250 mV/S and C= 100 mV/S. -0.80 -0.60 -0.40 -0.20 0.1 0.2 0.3 0.4 0.5 0.00 B 0.20 Potential, V 0.40 Current, µAQuestion 39 The apparatus shown in the picture was used to measure the cell potential during the titration of 100.0 mL of 0.125 M KCI with 0.500 M AGNO3 (Ksp AgCI = 1.8 x 10-10). Calculate the cell potential at the following points: a) 5.00 mL before Veg b) at Veg c) 5.00 mL after Veg V SCE Ag Half-cell reaction : Ag* + e-→ Ag E° = 0.799 3 V and potential of SCE is 0.241 V