The molecules of a gas, such as air, move around randomly at fairly high speeds (Chapter 16).The distance betweenmolecules, on the average,is many times their diameter. When a wave passes through a gas the impulse given to onemolecule is given to another only when this distance is travele...
y.easy to compass a gas, while a solid or liquid is almost incompressible, because the repulsions of the electrical charges of which its atoms are made up are far stronger than any force we can apply.译文:由于气体分子相隔太远,不能互相排斥或吸引,所以气体很容易压缩;而固体或液体几乎是不可...
11The r.m.s. speed of the molecules of a gas at 295 K is decreased by 20 %.What is the new temperature of the gas? A A -84.4C B -37.2 C C 189℃D236℃ 相关知识点: 试题来源: 解析 Am 295 T =188.8 K =-84.4 C 反馈 收藏 ...
THE following is an attempt to calculate the number of molecules of helium in unit volume directly, that is, without assuming Avogadro's hypothesis and the known value of the number of molecules of any gas per unit volume.doi:10.1038/080039a0GHOSEPNature...
The Brownian motion of a hard spherical particle in a gas whose molecules interact only with the particle but not with each other is considered from three points of view. (a) The generalized Fokker‐Planck equation for the process is derived by the classical method of Lord Rayleigh. (b) The...
We analyze the excitation by an electromagnetic wave of a two-level molecule (or atom) within a rarefied gas. This process differs from the excitation of an isolated molecule because there is significant interaction between the molecule and the surrounding gas particles as they are all polarized ...
The present invention relates to a novel family of inorganic solids with a narrow and calibrated mesopore distribution which are agglomerated with a binder; these solids can advantageously be used as adsorbents for the industrial separation of gas-phase compounds having different boiling points.收藏...
This article constitutes the fourth part of a general review of the gas-phase protonation thermochemistry of polyfunctional molecules (Part 1: Theory and methods, Mass Spectrom Rev 2007, 26:775–835, Part 2: Saturated basic sites, Mass Spectrom Rev 2012, 31:353–390, Part 3: Amino acids, ...
Recent years have seen tremendous progress in the field of cold and ultracold molecules. A central goal in the field is currently the realization of stable rovibronic ground-state molecular samples in the regime of quantum degeneracy, e.g. in the form of molecular Bose-Einstein condensates, mole...
Pentacoordinated molecules. XVII. Molecular structure of HPF4 and H2PF3 in the gas, liquid, and solid states from infrared and laser Raman spectroscopy 来自 Semantic Scholar 喜欢 0 阅读量: 21 作者:RR Holmes,CJ Hora 摘要: The structure of a selection of arsenate and sulphate based minerals ...