What causes Cp to spike at a certain temperature when compounds are transitioning from solid to liquid

Q: The elements xenon and gold both have solid-state structures consisting of cubic close-packing…

A: Both xenon and gold have cubic close-packing arrangements in solid state. But, there is a huge…

Q: The lattice constant of diamond is 0.3567 nm. What is the angle between two bonds of a carbon atom…

A: Diamond has FCC crystal structure.

Q: At high temperatures, glass has a tendency to change its shape into a sphere. Assume that the…

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Q: A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar…

A: For the FCC cubic,  Density = 20.5 g/cm3 Molar mass = 189 g/mol

Q: Explain the basic principles involved in X-ray crystallography. Include Bragg’s law in your…

A: SOLUTION: Step 1: X-ray crystallography is a method used for determining the atomic and molecular…

Q: Platinum nanoparticles of diameter ∼2 nm are important catalysts in carbon monoxide oxidation to…

A: For face-centered cubic crystal lattice, the relationship between radius and edge length is given…

Q: A solid metal X requires 120 J of heat to melt 2.0 grams of the metal at its normal melting point of…

A: The amount of heat required by a substance during its phase change from solid to liquid is called…

Q: The interhalogen compound BrF3 is a volatile, straw-colored liquid. The compound exhibits…

A: On increasing the temperature, the electronic conductivity decreases. This indicates that a fewer…

Q: Platinum has ΔHvap= 510.4kJ/mol and ΔSvap= 124.7 J/K•mol What is the appropriate boiling point of…

A: It is given that change in enthalpy of vaporization for platinum is 510.4 kJ/mol and change in…

Q: Which of the following statements is TRUE? Select one: CCl4(s) has a higher melting point than…

A: True statement among the above options is

Q: How do weak intermolecular bond strengths affect the melting and boiling point of a substance? bie

A: The liquids or Solid with strong intermolecular forces will hold on to their molecules preventing…

Q: Which is more stable at room temperature, a Cl2 molecule or two separate Cl atoms?

A: a) A Cl2 molecule is formed by the combination of two chlorine atoms held together by a covalent…

Q: Which of the following substances should have the highest melting point?     CO2     Xe     F2…

A: The melting point of the substance depends upon the intermolecular forces present in the molecule.…

Q: 8. Which of the following compounds is expected to have the strongest ion-ion interaction force? a)…

A: Here we have to predict the ionic compound in which ion-ion interaction will be strongest.

Q: What type of crystal structures possess the least degree of symmetry?

A: ANSWER

Q: (a) On the basis of micro-structural considerations, explain why polymers generally have a low…

A: Since you have asked for question 1 (part a). I am answering that. Please find the solution attached…

Q: Which of the following represent closest packing of spheres? 11 III IV O II + IV OI + IV III+IV | +…

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Q: A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar…

A: Given: Density of metal = 20.5 g/cm3. The lattice structure of the metal is FCC. And the molar mass…

Q: Explain the fol i) ii) Magnesium has a higher melting Silicon has a very high melting temperature…

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Q: A metal with molar mass of 46.15g/mol crystallizes in a face-centered cube with edge length of 392…

A: In a face centered cube unit cell one atom exist in the center and eight 1/2 atom lies in each face…

Q: Use sketch diagrams to show the 110 and 211̅ lattice plane for a tetragonal crystal.

A: in this systempresence of  three mutually perpendicular axes, two  are equal in length.   TETRAGONAL…

Q: Explain the phase diagram of CaO-MgO.

A: we have to discuss the phase diagram of CaO - MgO.

Q: (a) Why does Li Cl acquire pink colour when heated in Li vapours? (b) A solid with cubic crystal is…

A: (a) The reason why the metal halides get colour when they are heated in the metal vapours is the…

Q: Coordination number of the atom - meaning - example - how do you find the coordination number of an…

A: Coordination Number of a Central Atom In the case of polyatomic ions and molecules, the coordination…

Q: For each substance in the pair, list the forces between the formula units (IeFs for most, but IaFs…

A: a) The compounds given are SCl2 and SO2.

Q: Consider the following thermodynamic quantities below: ΔΗ Reaction +A +B Pb(s) → Pb(g) Pb(g) →…

A: Sublimation is the conversion of a solid to a gaseous state without it being liquid. Sublimation is…

Q: The coordination number (CN) is the number of adjacent ions (or atoms) surrounding the reference ion…

A: Calculate the radius ratio of given cation and anion

Q: 16. . Calculate the normal melting point of I2 (s) in °C given the following data: AH° = 15.52…

A: Exothermic reactions releases heat. Delta G at equilibrium is zero. At Melting point solids converts…

Q: Indicate the strongest force holding the crystals together in the following substances by putting a…

A: Since you have posted a question with multiple sub-parts, as per guidelines we will solve the first…

Q: What is latent heat of condensation?

A: Condensation: It is the transformation of water vapor into liquid. It's the opposite of evaporation,…

Q: What is the difference in packing efficiency between the hcp structure and the ccp structure

A: The packing efficiency is the fraction of volume in a crystal structure that is occupied by…

Q: A metal with molar mass of 99.42 g/mol crystallizes in a body-centered cube with edge length of 324…

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Q: Explain this phase diagram of copper and nickel briefly

A: A phase diagram represent the variation in the physical state of a substance under different…

Q: Indicate the strongest force holding the crystals together in the following substances by putting a…

A: There are various type of intermolecular forces are present in molecules such as dipole-dipole,…

Q: Predict which substance in each of the following pairs would have the greater intermolecular forces.…

A: 1) CO2or OCS - OCS is polar and possess dipole-dipole interactions as well as London forces whereas…

Q: Simple cubic a - R relationship Number of atoms/cell APF Coordination Number

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Q: 15. The enthalpy of fusion (melting) of water is 6.0 kJ/mol. Calculate the quantity of energy that…

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Q: A technique used for determination of the structure of a crystalline substance and obtaining…

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Q: The intermetallic compound FeTi has the CsCl-type structure with a=0.308nm. Calculate its density

A: Given FeTi has CsCl type structure .

Q: Explain how the co-ordination number affects or determines the stability of a crystal structure

A: Crystalline structure is made up of the uniform structure of well-arranged atoms in a lattice form.…

Q: Calculate the fraction of atom sites that are vacant for lead at its melting temperature of 327°C…

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Q: Below are 298K thermochemical data for gallium metal in the solid and liquid phases. Determine the…

A: From thermodynamics we can Write ΔG =  ΔH - TΔS At phase change of melting point  ΔG = 0 so, Tmp =…

Q: 1. The chart below shows three allotropes of carbon. ALLU1HOMIC UHMS O CAKSUN These three forms have…

A: Carbon is an element which can exist in different physical forms. The capacity of C to exist in…

Q: Indicate the strongest force holding the crystals together in the following substances by putting a…

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Q: Why do covalent and molecular crystals typically have a much lower packing density than metal…

A: 3. A covalent bond is formed by the overlap of half-filled atomic orbitals which have definite…

Q: The density of tungsten is 19.3 g/cm3. If the metallic radius of tungsten is 139 pm, what is the…

A: Dear Student

Q: Identify all intermolecular forces for each of the following: NH3 (NH3) SH2 (SH2) CO2 (CO2)

A: The intermolecular forces – The intermolecular forces are the attractive and repulsive forces…