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- 13.3p. If you allow one pound of carbon dioxide to sublime (change from CO2(s) to CO2(g)) at room conditions of roughly 1atm and 25C, what volume would it occupy?12:02 AM Sun Apr 2 ALEKS - Loleita Cruz - Le X → C = + O STATES OF MATTER Identifying the intermolecular forces between atoms, ions and... Explanation What kind of intermolecular forces act between a hydrogen (H₂) molecule and a xenon atom? Note: If there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force. Check X ●●● www-awu.aleks.com 3 | 0 0/5 0 1 Loleita V 6 ? 0: 100% olo 18 Ar Ⓒzuzu moraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center | Accessibility ●●https://openstax.org/books/chemistry-atoms-first-2e/pages/g-standard-thermodynamic-properties-for-selected-substances
- Q. Question 3(a) Oxidised chromium Cr2O3 has a diffusion coefficient of 5 ×10−15 cm2s−1 at 730 ℃ and is 2 ×10−9 cm2s−1 at 1430 ℃. Calculate the following parameters:(i) Activation energy Q.(ii) Constant ??.(b) The material stated in Question 3(a) has its atoms transferred from one lattice position to another at a rate of 4 ×105 jumps/s at 410 ℃. Apply suitable mathematical expressions and obtain the jump rate of the material at 650 ℃.The number of vacancies N, in a crystal can be calculated using the Arrhenius equation: N₁ = Ne Ev / KT where N is total number of atoms, Ev is the activation energy for vacancy formation, and k is the Boltzmann's constant and Tis the temperature. Boltzmann constant k = 8.62 x 10¹5 ev/K a) What are the units of 7? b) What are the units for Ev? c) Under what conditions can a crystal have no vacancies?At -185°C and 1 atm ethane exists as a solid with an FCC structure. The molecular mass of ethane is 30.07 g/mol. Using the data provided below: 194.1 K, b, = 0.1794 m³ /kmol k %3D a) Determine the diameter of one molecule of ethane (in angstroms).
- The concentration of O2 in water required to support aerobic aquatic life is about 4 .0 mg dm-3 . What is the minimum partial pressure of oxygen in the atmosphere that can achieve this concentration?During an experiment to determine the value of R a student collected the following data:Molarity of HCl 3.00MVolume of HCl 20.3mlMass of Mg 0.0411gVolume before equalization chamber 43.1mlVolume after equalization chamber 42.7mlBarometric pressure 759.1mmHgTemperature 21.9Calculate the following information and show all work.Moles of Mg reacted ____Moles of H2 formed ____Vapor pressure of water 19.8mmHgPressure of H2 from dalton’s law ____Volume of H2 ____Temperature(k) ____Calculated R value _______1). The susceptibility of FeCl₂ obeys the Curie-Weiss law over the temperature range 90 K to room temperature (293K), with 0 =48K. Its molecular susceptibility at room temperature is 1.475 1022 emu/Oe g mol). (Use: N= 6.022 x 1023 atoms/g-mol, KB= 1.38 × 10-¹6 erg/K) (a) Show that the effective magnetic moment is 5.4 µB. (b) Show that the value of J is 2.25. (c) At an applied field of 8000 Oe, what is the value of the molecular field at 0 °C ?
- 2. Why the oscillating plots in the CO2 isotherm at temperature below Tc are considered to violate Boyle's law?Vacancies and Self-Interstitials 1. For some hypothetical metal the equilibrium number of vacancies at 750°C is 2.8×1024?−3. If the density and atomic weight of this metal are 5.60 ? ??3⁄ and 65.6 ?/???, respectively, calculate the fraction of vacancies for this metal at 750°C.14 g of nitrogen gas were reacted with exces hydrogen. Calculate the volume of ammonia produced under standard conditions. (101 kPa, 298 K)R= 8.31 JK mol