The intermolecular forces of attraction (IMFA) are the interactions occurring between molecules. These are much weaker than the chemical bonds but are essential in determining the overall property of the compound. For instance, the fact that water has a higher boiling point tha...
If the central atom in a molecule is sp3 hybridized, it could have up to how many different electronic geometries depending on the number of bonded atoms and non-bonding (lone pair) electrons? Indicat...
Describe a way to manipulate the retention factor of a solute in partition chromatography. Partition Chromatography: Partition chromatography is a crucial class of chromatography. It has the purpose of separating the components of different liquid phases, which occurs through a...
aA MD force field is the the Hamiltonian (potential energy function) and the related parameters that describe the intra- and intermolecular interactions between the molecules in the system. In MD, the Hamiltonian is integrated to describe the forces and velocities of the molecules. 正在翻译,请等待...
Among the different procedures tested on the molecular/supramolecular systems developed in our laboratory, B3LYP/3-21G(*) seems to work best. We hereby summarize examples of successful application of the DFT B3LYP/3-21G(*) model, on a wide range of molecular/supramolecular systems, to the ...
The most reliable phase equilibrium data are used to fit the binary interaction parameters of a wide range of thermodynamic models: cubic equations of state (EoS) with quadratic/Wong–Sandler/Huron–Vidal mixing rules, CPA, PC-SAFT and PCP-SAFT with different association schemes, and corresponding...
Two other states have been discovered recently. In a plasma, designated as the fourth state of matter, the electrons are independent of the atomic cores. A fifth state are the Bose-Einstein condensates that only occur near absolute zero and have different behavior from solids...
Ideal Gases have the following properties: The volume of the individual particles of a gas are insignificant compared to the volume of the gas. Collisions of particles are elastic. There are no intermolecular forces between the particles of a gas....
Explain elasticity using intermolecular forces. How does an electric motor work, linking to the theory of electromagnetism? Explain the role of the Pauli exclusion principle in describing the electrical properties of metals. Describe and explain the different forms of energy. Relating to physics, ...
Explain different types of stress. Explain elasticity using intermolecular forces. Define the terms shear stress and shear strain, illustrating your answer by means of a simple sketch. Discuss the difference between the modulus of rigidity and the modulus of elasticity with an example. 1) What d...