Which of the three radioactive emissions (a, ß, y ) best fit the following statements? Write the correct symbol/s on the lines. e) This emission is stopped by thin paper or a few centimeters of air. f) This emission can travel through paper, but is stopped by aluminum. g) This emission can travel through fairly thick lead.

Explain the difference (in concept or definition) between Biot and Nusselt

Question 25 Cadmium sulfide (CdS) has a cubic unit cell, and from x-ray diffraction data it is known that the cell edge length is 0.585 nm. If the measured density is 4.82 g/cm³, how many Cd2+ and S2- ions are there per unit cell? Atomic weights of Cd2+ and S2-ions are 112.41 and 32.06 g/mol respectively. 06 04 02 05

You have been provided with a graph labelled Graph A (See Microsoft Teams or click here) that is the phase diagram for a Copper-Gold system. Use this figure to answer the questions below and show your work. a. If you have a 200g sample that is 10 wt% copper at 932°C, what is the minimum amount of copper you would need to add at this temperature to form a completely liquid phase for this sample? b. If you have a 200g sample that is 10 wt% copper at 932°C, what is the minimum amount of gold you would need to add at this temperature to form a completely solid phase for this sample?

2. Carbon nanotubes (CNT) are among the most versatile building blocks in nanotechnology. These unique pure carbon materials resemble rolled-up sheets of graphite with diameters of several nanometers and lengths up to several micrometers. They are stronger than steel, have higher thermal conductivities than most known materials, and have electrical conductivities like that of copper but with higher current- carrying capacity. Molecular transistors and biosensors are among their many applications. While most carbon nanotube research has been based on laboratory-scale synthesis, commercial applications involve large industrial-scale processes. In one such process, carbon monoxide saturated with an organo-metallic compound (iron penta- carbonyl) is decomposed at high temperature and pressure to form CNT, amorphous carbon, and CO2. Each "molecule" of CNT contains roughly 3000 carbon atoms. The reactions by which such molecules are formed are: Decomposition of Fe(CO)s to form iron, which…

For which set of crystallographic planes will a first-order diffraction peak occur at a diffraction angle of 44.53° for FCC nickel (Ni) when monochromatic radiation having a wavelength of 0.1542 nm is used? The atomic radius for Ni is 0.1246 nm. 1) ( eTextbook and Media Assistance Used

Define the following in chemical engineering perspective and draw and labebl an arrow block diagram: 1. Evaporation 2. Crystallization 3. Centrifugation 4. Precipitation 5. Distillation

A typical paper clip weighs 0.59 g and consists of BCC iron.Calculate (a) the number of units cells;and (b) the nuber of iron atoms in the ppaer clip.(See Appendix A for required data.)

Particle Technology - Screen AnalysisProblem: The product size distribution of a sample obtained by screen analysis is reported below Mesh No. Screen Opening (mm) Mass Fraction (xi) 8 2.362 0 10 1.651 0.03 14 1.168 0.14 20 0.833 0.25 28 0.589 0.20 35 0.417 0.14 48 0.295 0.09 65 0.208 0.06 100 0.147 0.04 150 0.104 0.03 200 0.074 0.015 Pan  - 0.005 Draw under-size and over-size cumulative analysis. Calculate the specific surface of the sample and the total number of particles. Obtain volume-surface mean, mass mean, and volume mean diameters of the sample.

Choose the correct option: Which of the following is not a unit operation? a) Crystallization b) Evaporation c) Cracking d) Distillation