Root Square Mean Velocity Example Problem

Gases are made up of individual atoms or molecules freely moving in random directions with a wide variety of speeds. Kinetic molecular theory tries to explain the properties of gases by investigating the behavior of individual atoms or molecules making up the gas. This example problem shows how to find the average or root mean square velocity (rms) of particles in a gas sample for a given temperature. Root Mean Square Problem What is the root mean square velocity of the molecules in a sample of oxygen gas at 0  °C and 100  °C?Solution:Root mean square velocity is the average velocity of the molecules that make up a gas. This value can be found using the formula:vrms [3RT/M]1/2wherevrms average velocity or root mean square velocityR ideal gas constantT absolute temperatureM molar massThe first step is to convert the temperatures to absolute temperatures. In other words, convert to the Kelvin temperature scale:K 273  °CT1 273 0  °C 273 KT2 273 100  °C 373 KThe second step is to find the molecular mass of the gas molecules.Use the gas constant 8.3145 J/mol ·K to get the units we need. Remember 1 J 1 kg ·m2/s2. Substitute these units into the gas constant:R 8.3145 kg ·m2/s2/K ·molOxygen gas is made up of two oxygen atoms bonded together. The molecular mass of a single oxygen atom is 16 g/mol. The molecular mass of O2 is 32 g/mol.The units on R use kg, so the molar mass must al so use kg.32 g/mol x 1 kg/1000 g 0.032 kg/molUse these values to find the vrms.br/>0  °C:vrms [3RT/M]1/2vrms [3(8.3145 kg ·m2/s2/K ·mol)(273 K)/(0.032 kg/mol)]1/2vrms [212799 m2/s2]1/2vrms 461.3 m/s100  °Cvrms [3RT/M]1/2vrms [3(8.3145 kg ·m2/s2/K ·mol)(373 K)/(0.032 kg/mol)]1/2vrms [290748 m2/s2]1/2vrms 539.2 m/sAnswer:The average or root mean square velocity of the oxygen gas molecules at 0  °C is 461.3 m/s and 539.2 m/s at 100  °C.

Analyzing The Menace Of Mass Destruction - 977 Words

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Furthermore, Einstein’s speech was effective since he grabbed the attention of his audience through the use of various literary and rhetorical devices. He applies logos to pass on valuable information to his audience. For instance, he notes that fear and anxiety result into hatred and aggressiveness. He also asserts that fear and distrust usually fasten conflicts among nations. In addition, progressive growth in technology has been the cause of the ever increasing instances of hostility, (AtomicShow MoreRelatedNuclear War : Power Versus Peace Essay1591 Words   |  7 Pagestoday’s society people must consider the possible devastation a major war could bring to the world and society as a whole. Throughout history the US has successfully avenged threats made to our nation, homes, and citizens but, what if the menace becomes mass destruction? 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A Teacher s View And Experience With Children With...

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Searchin by Duke Ellington free essay sample

The song I chose to evaluate for Assignment 2 Is Searcher by Outselling. The song can be found In Section 1: Basic Musical Concepts, Folksongs, Art Music, and All That Jazz. As a referential listener, two things come to mind as I listen to this easy go Jazz song by Duke. The first, I remember the first time really hearing jazz musicals when I was at a dinner banquet for my great grandmother. Since then, Behave always associated Jazz with a fine dining background sic or elevators at a nice hotel or business. The second, is a reference to Duke Lengthinesss. I had to a little project on Elongating for Black History month as a shareholder. So I am fairly familiar with his music and his life. In respect to my personification, Searching is somewhat like program music. Its smooth, easy electromagnetically music. Elongating himself is a king of program music having benefited on Soundtrack work to over 198 movie titles. We will write a custom essay sample on Searchin by Duke Ellington or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The musical concept In Dukes Searcher s a Jazz ensemble or Big Band-Like most Jazz, had a numerous short, reoccurring Plano riff. This Characteristic of almost all Jazz. The song also featured a saxophone, Westinghouse the song had its own solo. It is likely that Dukes band also had trumpet, clarinet, and other typical jazz instruments. The song was very effective presenting the many different instruments and showcasing the Jazz feel. Likelihoods said, Im going to give you one note today See how many ways yucca play it.