In other words‚ a mole of a 12 amu carbon atom will weigh 12 grams. The gram formula mass can be used as a conversion factor in stoichiometric calculations through the following equation: Moles = Converting between Volume of a Gas and Moles The Ideal Gas Law is PV = nRT ‚ with nrepresenting the number of moles. n = Mass to Moles Moles to Mass (same!) Atoms to Mass Divide by 6.022x10^23‚ then multiply by atomic mas To convert mass to atoms: Find the atomic mass of
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THIS FILE DOWNLOADED FROM THE IB NOTES SITE: http://ibnotes.tripod.com/ TOPIC 2— MECHANICS FOUNDATIONS: • • • Displacement— A measured distance in a given direction— tells us not only the distance of an object from a particular reference point‚ but also the direction from the reference point— is a vector. Velocity— Is speed in a given direction‚ and is also a vector. Acceleration— is the rate of change of velocity in a given direction (velocity/time). The unit in SI is metres per second
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Chapter 3 The second law Physical Chemistry. Atkins 9th ed. 1 Outcomes • Concepts 1. The second law of thermodynamics: Spontaneous changes‚ Entropy (ΔS)‚ Heat engine (Carnot cycle)‚ Clausius inequality. 2. Entropy changes: ΔS of expansion‚ ΔS of phase transitions‚ ΔS during heating‚ measuring entropy‚ the 3rd law of thermodynamics‚ 3rd law entropies. 3. Criteria for spontaneity: Helmholtz energy (A)‚ Gibbs energy (G)‚ Maximum work (ΔA)‚ maximum non-expansion work (ΔG). 4. Combining
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produced‚ applying Dalton’s Law and the Ideal Gas Equation along with the application of the stoichiometric ratio between the electron and the gases‚ the fundamental electronic charge will be determined. THEORY H+ ions will join together at the cathode (the negative electrode) to produce H Atoms‚ and the H atoms will join to form molecules of H2 gas. At the positive electrode (the anode)‚ H20 molecules will decompose to replace the H+ ions lost and release O2 gas. The reactions appear below
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embargo was skyrocketing energy prices as a result of limited supply and heavy demand. Rationing went into effect‚ with supplies of petroleum products being carefully doled out with ration cards and flag systems‚ in which people could take turns buying gas and other fuels on the basis of license plate numbers. At the same time‚ the stock market contracted radically‚ an event that foreshadowed future stock market instabilities linked to the price of oil. The 1970s was also an era in which environmentalism
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Shale Gas Shale gas-expanding India’s gas frontier? Samir Verma‚ Senior Manager‚ Schlumberger Business Consulting‚ India‚ Asia Shubha Shanthamurthy‚ Manager‚ Schlumberger Business Consulting‚ Europe‚ CIS & Africa The exploitation of shale gas resources is garnering increasing attention in India‚ which relies on oil imports to fuel its growing economy. In November‚ India signed a memorandum of understanding with the U.S. Geological Survey for technical assistance to assess shale gas resources
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liquids and gases. Gas Pressure: 1. Calculate each of the following: (show your work) i. 740 torr = _______________ atm ii. 1.15 atm = _______________ in Hg iii. 780 mm Hg = _____________ Pa Gas Laws: 1. If a sample of 4.17 L of ethane gas at 95 C is cooled to -80 C at a constant pressure‚ what is the new volume? 2. Calculate the volume occupied by 8.072g of neon gas at a temperature of 35C and a pressure of 1140 torr. (R = 0.0821 L.atm/mol.K) 3. Methane gas (CH4) is compressed
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10/ 2012 Lecture Room DKP 10 Engineering Thermodynamics Lecture 6: Evaluating Properties Using the Ideal gas OUTLINE: Real gases‚ specific heats‚ internal energy‚ enthalpy In this section the ideal gas model is introduced. The ideal gas model has many applications in engineering practice and is frequently used in subsequent section of this text. Ideal gas Equation state From the Generalized compressibility chart show that the state where the pressure p is small relative
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The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules)‚ all of which are in constant‚ random motion. The rapidly moving particles constantly collide with each other and with the walls of the container. Kinetic theory explains macroscopic properties of gases‚ such as pressure‚ temperature‚ or volume‚ by considering their molecular composition and motion. Essentially‚ the theory posits that pressure is due not to static repulsion between molecules‚ as
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Computer Program for Calculating Properties of Equilibrium Combustion Products with Some Applications to I.C. Engines Cherian Olikara and Gary L. Borman University of Wisconsin MANY MODELS FOR ENGINE COMBUSTION PROBLEMS use the First Law of Thermodynamics as applied to either the entire cylinder contents or to sub systems. Examples include models for spark ig nition engines (1)*‚ diesel engines (2) and stratified charge engines (3). Typically the major species of the products
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