Imagine you are tasked with designing a building in aseismically active area. You have met with your team,and it has been decided that the center of mass of thecompleted, fully occupied structure is to be located0.10% of the total height directly above the center of thebase of the building. Seismic waves typically have afrequency between 1-100 Hz. Outline a procedure fordetermining the maximum height the building can be.Draw a free-body diagram and start with TheMomentum Principle. Make any approximations youdeem necessary and explain why. Assume theearthquake provides a horizontal driving force of Fsubscript qua k e end subscript equals F subscript D sin left parenthesis omega t right parenthesis, where Fsubscript D is the amplitude of the driving force, omegaequals 2 pi f, and f is frequency of the seismic wave.

Question 2:(a) Definitions:Void ratio (e): The ratio of the volume of voids (Vv) to the volume of…

Answered: Imagine you are tasked with designing a…

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter8: Gases

Section: Chapter Questions

Problem 138AE: One of the chemical controversies of the nineteenth century concerned the element beryllium (Be)....

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Carbon dioxide and water are important greenhouse gases. Sketch the fundamental vibrations for both molecules and indicate which you expect to be infrared active.
3. ^14N^16O (the superscripts represent the atomic mass number) (a) NO molecules rotate at an angular velocity of 2.01x10^12 rev/s, at the quantized rotational state with the rotational quantum number J of 3. Calculate the bond length of NO molecules. (b) Can NO molecules rotate under light irradiation? Explain your answer. (c) Calculate the effective force constant of the vibrational mode of NO at a frequency of 5.63x10^13 Hz measured by the infrared absorption spectrum. (d) NO has a bond energy of 6.29 eV. Applying the parabolic approximation to estimate the longest distance in which N and O atoms can be stretched before the dissociation of the molecular bond
Suppose the incident sunlight at ground level has a power density of 0.87 kW m−2 at noon. What is the maximum rate of loss of water from a lake of area 1.0 ha? (1 ha = 104 m2.) Assume that all the radiant energy is absorbed; take the enthalpy of vaporization of water to be 44 kJ mol−1.
Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic frequencies. Note: Reference the Fundamental constants and Unit conversions for derived SI units tables for additional information, Part 1 of 2 A molecular vibration absorbs radiation of wavelength 219. um. What frequency corresponds to that wavelength? Round your answer to 3 significant figures. 0.9 X G Part 2 of 2 A molecular vibration has a frequency of vibration of 9,490x 10 Hz. What wavelength corresponds to that frequency? Round your answer to 4 significant figures. um of Save For Later 141 Submit Assignment
Answer the following questions at 75 °C and 1 mole assuming all possible energy states are populated (iv) most probable speed of He atoms (v) ratio of the most probable speeds of He and Hg atoms (vi) the mean relative speed of H2 molecules (vii) the root mean square speed of O2 molecules (viii) translational energies of He atoms (ix) vibrational energies of He atoms (x) rotational energies of He atom Can you solve all the subheadings
A 1.00 kg weight is traveling at a constant velocity of 10.0 ms-1, in a cubic room 3.00 m on an edge.(a). Determine the sum of the squares of its three quantum numbers.(b). What would be the ground state energy for this weight?
Given these two equations, calculate Cv for CO2 and N2 using the velocity of sound. 6. According to statistical mechanics, the contribution to Cy due to the ith vibrational mode of a molecule is c ee;/T Cv,vib,4 = R(7) ³ (e®,/T — 1)² › where Oi = hcv./kB, h is Planck's constant, and c is the speed of light in cm s-¹. v; is the vibrational frequency of the ith vibrational mode in wavenumbers (cm-¹). The quantity O, has dimensions of temperature and is sometimes referred to as the vibrational tem- perature (of the ith vibrational mode). The total vibrational contribution to the molar heat capacity for an N-atom (linear) molecule is then Cy,vib Cv,vib,i Calculate Cy for CO₂ at 300 K, assuming that the translational and rotational con- tributions are (3/2)R and R, respectively, and use the preceding equations to obtain the vibrational contribution. Four vibrational modes for CO₂ are expected (3N- 5). How- ever, three fundamental frequencies are observed at v= 667.3, 1340, and 2349.3 cm-¹.…
Two nitro (NO,) groups are chemically bonded to a patch of surface. They can't move to another location on the surface, but they can rotate (see sketch at right). It turns out that the amount of rotational kinetic energy each NO, group can have is required to be a multiple of s, where e= 1.0 x 10* J. In other words, each NO, group could have e of rotational kinetic energy, or 26, or 3ɛ, and so forth – but it cannot have just any old amount of rotational kinetic energy. Two rotating NO, groups Suppose the total rotational kinetic energy in this system is initially known to be 198. Then, some heat is added to the system, and the total rotational kinetic energy rises to 27e. Calculate the change in entropy. bonded to a surface. Round your answer to 3 significant digits, and be sure it has the correct unit symbol.
In your own words, describe why metals are such good conductors of electricity. Be sure to include the definition of metallic bond in your answer. Answer in 2 to 3 complete sentences. I !!! H Normal A Enter your answer here BIUS √x 20 Tx
One of the chemical controversies of the nineteenth century concerned the element beryllium (Be). Berzelius originally claimed that beryllium was a trivalent element (forming Be3+ ions) and that it gave an oxide with the formula Be2O3. This resulted in a calculated atomic mass of 13.5 for beryllium. In formulating his periodic table, Mendeleev proposed that beryllium was divalent (forming Be2+ ions) and that it gave an oxide with the formula Be2O3. This assumption gives an atomic mass of 9.0. In 1894, A. Combes (Comptes Rendus 1894, p. 1221) reacted beryllium with the anion C5H7O2and measured the density of the gaseous product. Combess data for two different experiments are as follows: I II Mass 0.2022 g 0.2224 g Volume 22.6 cm3 26.0 cm3 Temperature 13C 17C Pressure 765.2 mm Hg 764.6 mm If beryllium is a divalent metal, the molecular formula of the product will be Be(C5H7O2)2; if it is trivalent, the formula will be Be(C5H7O2)3. Show how Combess data help to confirm that beryllium is a divalent metal.
Which of the following statements are true about the relationship between C p,m and C v,m ?
Be sure to answer all parts. Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic frequencies. (a) A molecular vibration absorbs radiation of wavelength 28.3 um. What frequency (in s) corresponds to that wavelength? Enter your answer in scientific notation. x 10 (b) A molecular vibration has a frequency of vibration of 7.574 x 10" Hz. What wavelength (in um) corresponds to that frequency? um

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