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...
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 ...
(II) Show that if the molecules of a gas have f degrees of freedom, then theory predicts C_V = 1/2 ƒ R and C_P = 1/2 ( ƒ + 2) R. Verified step by step guidance 1 Identify the key concepts involved in the problem: degrees of freedom (f)...
molecules of a gas are as 2, 3,2,4,5,4,6,4 (m/s). The most probable speed of gas molecule (in m/s) is A 2 B 4 C 6 D 5 Video Solution Play Video Struggling With Question Bank? Get Allen’s Free Revision Notes Free ALLEN Notes ...
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...
Describe what is observed when viewing Brownian motion that provides evidence for your answer in (a).[2](c)At a pressure of 1.05 ×105P a and a temperature of 27C, 1.00mol of helium gas has a volume of 0.0240 m3.The mass of 1.00 mol of helium gas, assumed to be an ideal gas, ...
解析 (a) The molecules in a gas are further apart and can be pushed closer together. The molecules in a liquid are closer together and cannot be pushed closer together. 气体分子间距较大,分子间作用力较弱,因此可以被压缩。液体分子间距较小,分子间作用力较强,因此不易被压缩。
Four molecules of gas have speeds 1,2,3 and 4 km//s.The value of the root mean square speed of the gas molecules is
Kinetic models for polyatomic gases have two temperatures for the two different types of degrees of freedom, the translational and the internal energy degrees of freedom. Therefore, in the case of BGK models one expects two types of relaxations, a relaxation of the distribution function to a Maxw...
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 ...