Explain, using intermolecular forces, why at room temperature, petrol (mainly octane, C8H18) is a liquid, while candle wax (C23H48) is a solid

Q: Arrange the following substances in order of increasing total intermolecular forces between their…

A:

Q: Estimate the boiling point of CS2.

A: Given: CS2

Q: Explain each of these properties of water, and describe how each is conferred by the dipolar nature…

A:

Q: How many sigma bonds are formed during the course of the following reaction? C 18H 37OH+270 2(g)…

A:

Q: NaH crystallizes with the same crystal structure as NaCl. The edge length of the cubic unit cell of…

A: The relationship between edge length and radius of face center cubic unit cell is shown below:…

Q: Crystal structure represents the manner in which atoms or ions are arrayed in space. It is defined…

A: A unit cell is the smallest repeating unit of a crystal lattice. It denotes the three dimensional…

Q: 11. Several conformational isomers of butane are illustrated below. Which has the LOWEST energy? CH3…

A:

Q: Which type of intermolecular force accounts for each of these differences? (a) CH3OH boils at 65 °C;…

A: Stronger the intermolecular force higher will be the boiling point

Q: Explain why higher average kinetic energy results in higher vapor pressure in terms of IMFs.

A: The reason why higher average kinetic energy results in higher vapor pressure in terms of IMFs has…

Q: Silicon has a face-centred cubic structure with two atoms per lattice point, just like diamond. At…

A: Given : a = 543.1 pm

Q: Which of the following gaseous substance would have the lowest solubility in water?   CO2 H2 NH3 O2

A: Among these four gases H2 will have lowest solublity in water.

Q: The ionic radii of the Mg21 and 022 ions are 0.86 Å and 1.26 Å, respectively. Given that the…

A:

Q: Determine the number of atoms per unit cell shown - Zinc blende (cubic ZnS) -

A: First diamgram  n = (1/6×12)+(4×1)+(1/2×2) = 7 Second diagram  n = (1/8×8)+(1/2×2) = 2 Third diagram…

Q: Given the information below, calculate the lattice enthalpy for MX(s), where M is a group 1 metal,…

A: Hess's Law of Constant Heat Summation :- states that regardless of the multiple stages or step of a…

Q: Which compound has the highest melting point: NaCl, CH 4, or H 2SO 4?

A: The melting point depends on the strength of intermolecular forces. Higher the intermolecular force,…

Q: At room temperature, the edge length of the cubic unit cell in elemental silicon is 5.431 Å, and the…

A: The crystal lattice is a definite ordered structure. A lattice is an arrangement of particles in a…

Q: 1) Palladium (electron configuration is [Kr]4dv) crystallizes in a face-centered cubic unit cell.…

A:

Q: Explain the phase diagram of CaO-MgO.

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

Q: (a) What are the C¬C¬C bond angles in diamond?(b) What are they in graphite (in one sheet)? (c)…

A: a) The C-C-C bond angle in carbon is 109.5 degrees. Here all the carbon are sp3 hybridise and…

Q: (3) The unit cell length of NaCl is 5.63 Å. Determine the density of NaCl.

A: We have to calculate the density of the NaCl unit cell.Given:length of unit cell = 5.63 Å

Q: A certain compound, whose density is 4.56 g/cm³, crystallizes in the tetragonal system with unit…

A:

Q: Examining the crystal structure of CsCl (Caesium Chloride), the Cs+ions form the 8 corners of a cube…

A: The crystal structure of CsCl is given to have Cs+ ions present at the eight corner of the cube…

Q: What names are given to SiO2 when it exists in the following two solid-state forms? Amorphous Solid…

A: The correct answer about SiO2 is given below

Q: Iodine has an orthorhombic unit cell for which the a, b, and c lattice parameters are 0.479, 0.725,…

A: atomic fraction factor = 0.547  atomic radius of an atom = 0.177 nm lattice parameters: a= 0479nm ,…

Q: 7. (a) What effect do the polarity, size, and shape of a molecule have on the physical properties of…

A: In this question we will answer how polarity, shape and size of a molecule affect the physical…

Q: Select the compound that will have the lower equilibrium vapor pressure based on predicted…

A: The liquid molecules tend to convert into the vapour phase. In a closed container, the pressure of…

Q: What are the various phases of SiO2?

A: The objective of the question is to write the various phases of SiO2.

Q: 1.Indium has a tetragonal unit cell for which the a and c lattice parameters are 0.459 and 0.495 nm,…

A: a = 0.459 nm      = 0.459 ×10-7 cm. c = 0.495 nm    = 0.495 ×10-7 cm. APF = 0.693 R = 0.1625 nm…

Q: A metal crystallizes in the face-centered cubic crystal structure with a unit cell edge of 3.52 x 10…

A: