2013/07/09 Lecture Presentation Chapter 5 Thermochemistry John D. Bookstaver St. Charles Community College Cottleville‚ MO © 2012 Pearson Education‚ Inc. Energy • Energy is the ability to do work or transfer heat. – Energy used to cause an object that has mass to move is called work. – Energy used to cause the temperature of an object to rise is called heat. Thermochemistry © 2012 Pearson Education‚ Inc. 1 2013/07/09 Kinetic Energy Kinetic energy is energy an object possesses
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A. MATTER * Nature of matter. * Describe the states of matter and explain their conversion in terms of the kinetic particle theory. * Describe and explain diffusion. * Describe dependence of rate of diffusion on molecular mass‚ qualitatively. * Experimental techniques Measurement. * Name appropriate apparatus for the measurement of time‚ temperature‚ mass and volume‚ including burettes‚ pipettes and measuring cylinders. Criteria of purity. * Identify substances
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Exercise 1 Finc 6001 ID Number: 420057462 Name: Ying Liu Email: yliu3261@uni.sydney.edu.au Lecture time: Tuesday 6pm-9pm Exercise 1 a. Will the project be undertaken? Pessimistic Expected Optimistic Market size 110‚000 120‚000 130‚000 Market share 22% 25% 27% Price $115 $120 $125 Variable costs $72 $70 $68 Fixed costs $850‚000 $800‚000 $750‚000 Investment $1‚500‚000 $1‚500‚000 $1‚500‚000 Table 1 From the above information
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The common pencil uses about 40 different raw materials‚ the basic ones being wood‚ graphite and clay. The indigenously grown wood brought specifically from the state of Jammu and Kashmir‚ is first cut into slats that are as long as but only half the width of the pencil. The slats are then subjected to wood staining and grooves are cut into the slats. 2. Next‚ the lead‚ which is a mixture of micronised graphite and ball clay‚ is dried and inserted into these grooves. The leads are bonded‚ shaped
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SHEET METAL STRUCTURES 2.1 D01 A well designed rivet joint will subject the rivets to A compressive loads. B tension loads. C shear loads. 2-1. Answer C. JSAT 2-51 (AC65-15A) Rivets hold pieces of aircraft skin together‚ and in a prop- erly designed riveted joint‚ the rivets support shear loads only. 2.2 D01 A main difference between Lockbolt/ Huckbolt tension and shear fasteners (other than their application) is in the A method of installation. B number of locking
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Chapter Callaway Golf Company Rajiv lal Edith D. Prescott . Ely Callaway‚ Callaway Golf Company ’s (CGC) 80-year:old founder‚ chairman‚ and chief executive officer‚ sat in the conference room one sunny day in fall 1999 contemplating his company ’s remarkable story. He wondered how that story might continue in light of some recent internal and external challenges. In the span of a decade‚ Callaway had built CGC into the dominant player in the golf equipment business‚ despite charging premium
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rectorite‚ diatomite‚ barite‚ gypsum‚ alunite‚ graphite‚ fluorite‚ rock phosphate‚ Kalium ore‚ pumice‚ etc.‚ totally more than 100 kinds of rock Description Spodumene ultrafine powder mill is for super-fine grinding materials with hardness less than 6 in Moh`s scale and humidity less than 6 percent such as kaolin‚ limestone‚ basalt‚ calcite‚ marble‚ talcum‚ barite‚ gypsum‚ dolomite‚ bentonite mud‚ mica‚ pyrophyllite‚ sepiolite‚ carbon black‚ diatomite‚ graphite‚ alunite‚ fluorite‚ potassium feldspar‚
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5.2.2 Enthalpy and Entropy For 2013-2014 S for melting vs. boiling Discuss How do chemists work out whether a reaction will happen or not? There are various ways including equilibrium constants‚ standard electrode potentials and enthalpy values. But how are these related? There is a more fundamental concept which links all these together. Remember? Enthalpy is a measure of heat energy and ΔH is the enthalpy change which we studied at AS. Questions 1. Which sign for ΔH would
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OIXDATION(AND(REDUCTION(–(REDOX(CHEM(1( ( KEY(REDOX(CONCEPTS( •! Oxidation)and)reduction)are)electron(transfer(processes)(reactions).)) o! Oxidation(–(Loss)of)electrons)) !! Reductant((reducing)agent))–)undergoes)oxidation.)) o! Reduction(–(Gain)of)electrons)) !! Oxidant((oxidising)agent))–)undergoes)reduction.)) ! Example:(((((((((((Mg(s)(+(2H+(aq)( (Mg2+(aq)(+(H2(g)( o! This!reaction!can!be!broken!up!into!two!halfEreactions(( !! Oxidation:)Mg(s))")Mg2+)+)2e:)(lost)electrons))( !! Reduction:)2H+)+)2e:)")H2)(gained)electrons))(
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The Atomic Bomb The research for the first Atomic bomb took place in the United States‚ by a group of nuclear engineers; the name of this research was called‚ “The Manhattan Project”. On July 16‚ 1945‚ the detonation of the first atomic bomb was tested near Los Alamos‚ New Mexico. As the atomic bomb was detonated‚ it sent shock-waves across the globe‚ which demonstrated that nuclear power would forever change the meaning of war. To create a nuclear bomb‚ nuclear fission must occur. The process
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