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For the circuit shown, what is the overall resistance?
I know that the answer is 16 ohms but I don't know how to do it and get that answer.
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- Fi Calculate the van der Waals second viral coefficient (B) using Zydw at 299.6 K, where Zydw is given as 1 where Pc= 119.9 atm, Vm.c= 122.2 cm3/mol and T= 325.2 K. a Zvdw =1+|b- RT O a. 0.22 O b. -3.22 O c. -2.01 O d. -0.181. A model for the potential energy interaction between the two nitrogen atoms in the N2 molecule is proposed that has the form: v(4) = 4E, (4)* - ()'] 12 a. Find the position of the potential minimum and its value there, in terms of o and Eo, respectively. What do these parameters represent physically about the molecule? b. Draw a hand sketch of V(r) showing rmin, V(rmin) and where V crosses the r axis. c. If the atom is disturbed from its equilibrium by a small amount, show that the 7.56. frequency of oscillation is w = d. For molecular nitrogen, the bond length is 1.1 x 10-1°m, the bond (binding) energy is 9.79 eV (15.66 x 10-19 J), the mass is 14 amu = 23.38 x 10-27 kg. In the spectroscopy laboratory, this vibration is measured to be 8.8 x 1013 Hz. Is this a good model for the interatomic potential? (Recall o = 2n times frequency in Hz) where m is the mass of a nitrogen atom.R35 Exercisel. B.1. in en mobe when enthalpy one of goes from book to 5ook under the Pressure, Calculate the change lodine of satm. Ikle give molor heats the of pure Cp (I2, Solid) z 5.4 cal mol" K-1 Cp (Za, liquid) = 19,5 calmol-¹ K-1 bodies! Op 12, gas) = 9.0 Cal mat" K-1 Molar enthalpies of phase change (latent heat): Sh vaporisation, 470K = 6.10 Keatmet-1 shifusion, 387K = 3.74 kcalmol-1 Please answer the question stepwise, showing explanations. Thanks in advanced !!!! detailed
- 1 - : Use the plot of B2(T) vs T given below and the information below to show that the inversion temp is approx. 620K. Cp =5R/2 R= gas constant =0.08205 dm² atm K' mol- В. (Т) 1+ ´@B,(T)) Virial Eq. RT 25 20 15 10. SE 300 400 500 600 700 800 Temp(K) B,(cnmol)The measured density of a CsCl crystal is 3.988 g/cm3. What is the equilibrium separate distance of Cs+ and Cl- ions?1. Pressure and bulk modules of an electron gas. (a) Derive a relation connecting the 3 pressure and volume of an electron gas at OK. Hint: Use the result of U == the relation between & and electron concentration. The result may be written as 200 3V 5p B = = p= 10U 3 9V of the electron gas contribution to B. NE N&F and . др (b) Show that the bulk modules B = -V. of an electron gas at OK is av . 5 (c) Estimate for potassium, using Table 1 of the textbook, the value
- 4. Compute the linear attenuation coefficient of iron oxide (Fe304) at 1 MeV. Use the figures provided and the following information; µc = (Opp x Z?), PPi = g/mole, AFe NeocZ, µpe = Nope (Ope X 2"), Mрp — Nopр 11.3 g/cm³, pre304 = 5.8 g/cm³, Zp = 82, ZFe = 26, Zo = 8, Ap6 = 207.19 = 55.85 g/mole, Ao = 16 g/mole. (Note: µFe304 = µFe+ µ0).: A uniform piece of n-type of silicon that is lum long senses a voltage of 1 v. Determine the velocity of the electrons. Use p1350 cm/V.sesA:08 الرسائل المحفو. . . 1 03: Rhenium has a Hexagonal Close-Packed crystal structure with an atomic radius of 0.137 nm and a ratio c/a of 1.615, compute: a) The volume of the unit cell. b) The theoretical density c) Atomic packing factor Note: Avogadro's' number = 6.023×10²³ Atomic weight = 186.21 g/mol إضافة وصف.. . III
- 8. A pure silicon cont ains 5 x 1028 atom per cubic met er and the ratio of brok en bonds are one bond per 1012 silicon atom at 38°C. What is the ratio of broken of covalent bonds if the temperat ure raised to 75°C, where Eg = 1.1 eV? 9. A piece of pure semicon duct or contains 5x 1018 don or at oms at 27 °C. How far the Fermi level will move and in which direction if an addition al don or at oms of concentration of 1022 will put in?How many Rh R h atoms would have to be placed side by side to span a distance of 9.5 μm μ m ?Calculate the kinetic energy of 10 guarn of Augen molecules at 127°C. I Univerval gas Constant. R= £320J/K mole K. Atomic weight of Augon = 40].