PHYSICAL CHEMISTRY-STUDENT SOLN.MAN.
2nd Edition
ISBN: 9781285074788
Author: Ball
Publisher: CENGAGE L
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Chapter 21, Problem 21.24E
Interpretation Introduction
Interpretation:
The reason as to why there would not be second-order diffraction if the first-order diffractions occur at angles greater than
Concept introduction:
A unit cell of the crystal is the three-dimensional arrangement of the atoms present in the crystal. The unit cell is the smallest and simplest unit of the crystal which on repetition forms an entire crystal. The parameters of a crystal can be obtained experimentally by X-ray diffraction technique.
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Chapter 21 Solutions
PHYSICAL CHEMISTRY-STUDENT SOLN.MAN.
Ch. 21 - Prob. 21.1ECh. 21 - Boron nitride, BN, is a very hard material, harder...Ch. 21 - Prob. 21.3ECh. 21 - Prob. 21.4ECh. 21 - Figure 21.35 shows a unit cell of diamond....Ch. 21 - Prob. 21.6ECh. 21 - How many different unit cells can a crystal have...Ch. 21 - Prob. 21.8ECh. 21 - Prob. 21.9ECh. 21 - Prob. 21.10E
Ch. 21 - Prob. 21.11ECh. 21 - Prob. 21.12ECh. 21 - Prob. 21.13ECh. 21 - Prob. 21.14ECh. 21 - Prob. 21.15ECh. 21 - Prob. 21.16ECh. 21 - Prob. 21.17ECh. 21 - Prob. 21.18ECh. 21 - Prob. 21.19ECh. 21 - Prob. 21.20ECh. 21 - Prob. 21.21ECh. 21 - Prob. 21.22ECh. 21 - Prob. 21.23ECh. 21 - Prob. 21.24ECh. 21 - Prob. 21.25ECh. 21 - Prob. 21.26ECh. 21 - Prob. 21.27ECh. 21 - Prob. 21.28ECh. 21 - For a simple cubic lattice, what is the ratio of...Ch. 21 - Prob. 21.30ECh. 21 - Prob. 21.31ECh. 21 - Consider Figure 21.21. If the lower rightmost...Ch. 21 - Prob. 21.33ECh. 21 - The aluminum-nickel alloy AlNi has a simple cubic...Ch. 21 - Prob. 21.35ECh. 21 - The first two signals from a powdered sample has X...Ch. 21 - Prob. 21.37ECh. 21 - Prob. 21.38ECh. 21 - Prob. 21.39ECh. 21 - Prob. 21.40ECh. 21 - Prob. 21.41ECh. 21 - Prob. 21.42ECh. 21 - Prob. 21.43ECh. 21 - Prob. 21.44ECh. 21 - Prob. 21.45ECh. 21 - What is the coordination number in the cesium...Ch. 21 - Prob. 21.47ECh. 21 - Which solid phase that is, which allotrope of...Ch. 21 - Prob. 21.49ECh. 21 - Prob. 21.50ECh. 21 - Write Born-Haber cycles showing the relationship...Ch. 21 - Prob. 21.52ECh. 21 - Prob. 21.53ECh. 21 - Prob. 21.54ECh. 21 - The lattice energy for potassium iodide, KI, is...Ch. 21 - Prob. 21.56ECh. 21 - Prob. 21.57ECh. 21 - Prob. 21.58ECh. 21 - Prob. 21.59ECh. 21 - Prob. 21.60ECh. 21 - Prob. 21.61ECh. 21 - Prob. 21.62ECh. 21 - Prob. 21.63ECh. 21 - Prob. 21.64E
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- A cubic plane has the following axial intercepts: x=1, y=2/3, z=-1/2 . What are the Miller indices of this plane?arrow_forwardThe surface energy of a single crystal depends on crystallographic orientation. Does this surface energy increase or decrease with an increase in planar density? Why?arrow_forwardBriefly explain the difference between particle and crystal sizearrow_forward
- In X-ray crystallography, a small amount of oil is often used to mount the crystal sample on a glass fiber. Explain why neither the oil nor the glass fiber interferes with the diffraction pattern of the crystal.arrow_forwardI am given a sample of an unknown metal X. The density of the metal is 8.90g/cm3. X-ray diffraction studies determine that the packaging of the metal is face centered cubic, and they also measure the radius of X to be 128pm. Find the identity of X.arrow_forwardDo X-ray diffraction structures correspond to their solution structure?arrow_forward
- Elemental silver reflects X-rays of wavelength 154.18 pm at angles of 19.076°, 22.171°, and 32.256°. However, there are no other reflections at angles of less than 33°. Assuming a cubic unit cell, determine its type and dimension. Calculate the mass density of silver. Hint: Calculate the expected reflections from different types of cubic unit cell and compare those with the data given.arrow_forward3) The figure below shows an x-ray diffraction pattern for erbium nitride (ErN) taken using a diffractometer mono-chromatic x-radiation having a wavelength of 0.15418 nm; each diffraction peak on the pattern has been indexed. Assume the order of diffraction is 1. 1- Compute the interplanar spacing for only three indexed planes. 2- Determine the lattice parameter.arrow_forwardCalculate the first-order (n=1) Bragg diffraction angle for 110.0 pm X-rays passing through a crystalline lattice having a spacing between adjacent molecular layers of 189.0 pm.arrow_forward
- A crystalline sample has a diffraction peak at 17.2°. What is the corresponding d space in pm? Assume n = 1 and A = 71.1 pm. Report your answer to the ones place.arrow_forwardExplain how planes of lattice points are labelled.arrow_forwardIn TEM, we can obtain a diffraction pattern of a thin sample through the use of objective apertures that act as a barrier for incoming electron radiation in the microscope column. Due to the small angle that the beam makes as it transmits through the crystal planes of TEM samples, the Bragg condition can be modified to: ηλ 2d0 = Determine the wavelength of electrons travelling through an objective aperture if the diffraction spot produced satisfies the Bragg condition at (1.20x10^-2) (0 in radians) for the first order (110) plane with a lattice parameter of (6.010x10^-10), and the camera length between the CCD camera and sample is {c}.arrow_forward
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