Prof. Ioan Kosztin Lecture #23 Solid State Physics • Bonding in solids (metals‚ isolators‚ semiconductors) • Classical free electron theory of metals • Quantum theory of metals • Band theory of solids • Semiconductors • Lasers Classification of solids • Phases of matter: • solid (well defined shape and volume) • liquid (only well defined volume) • gas (no defined shape or volume) • plasma (an overall neutral collection of charged and neutral particles) • Solids • crystalline (atoms form a regular
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The Solid State General characteristics of solid state: Definite mass‚ volume and shape Short intermolecular distances Strong intermolecular forces Fixed lattice positions of the constituent particles Incompressibility and rigidity Classification of the solid state: Crystalline Amorphous (sometimes called pseudo solids or super-cooled liquids) Differences between the crystalline and amorphous solids Crystalline Have definite characteristic geometrical shape Melt at a sharp and characteristic temperature
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Case Study 1: Municipal WiFi In this currently changing data-thirsty world‚ people like to access the information regarding family‚ business‚ politics‚ education and social or professional networking in their day-to-day lives. Thus‚ As-mobile-as-possible wireless access to the internet‚ intranet or a corporate database. Applicable services and features will include: VoIP in this case VoWLAN‚ Navigation w/o GPS but over Wireless network Internet browsing for professional development
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Participation in Solid Waste Management: Challenges and Prospects. A case of Kira Town Council‚ Uganda By Mukisa Philemon Kirunda The master thesis is carried out as a part of the education at the University of Agder and is therefore approved as such. However‚ this does not imply that the University answers for the methods that are used or the conclusions that are drawn. Supervisor: Åke Bjørke The University of Agder‚ Kristiansand December 2009 Public Participation in Solid Waste Management:
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Class 4 – Flammable Solids Division 4.1 – Flammable Solids are: • Wetted explosives that are Class 1 explosives when dry‚ that are sufficiently wetted to suppress explosive properties. • Self-reactive materials that are thermally unstable and can undergo strong exothermic decomposition even in the absence of oxygen. Readily combustible solids that can cause fire through friction‚ such as matches. Powdered‚ granular or pasty materials must be classified as Division 4.1 when the time of burning of
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* Cube In geometry‚ a cube is a three-dimensional solid object bounded by six square faces‚ facets or sides‚ with three meeting at each vertex. As the volume of a cube is the third power of its sides ‚ third powers are called cubes‚ by analogy with squares and second powers. A cube has the largest volume among cuboids (rectangular boxes) with a given surface area. Also‚ a cube has the largest volume among cuboids with the same total linear size (length+width+height). * Parts:
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WASTE MANAGEMENT ASSESSMENT 1 Management of municipal solid waste (MSW) or otherwise known as trash or garbage is an ongoing environmental and economic issue not only in the Unites States but also around the world especially in a developing country like the Philippines. The need for a community assessment that aims at assessing the current problems related to the way trash is managed in Pateros‚ the smallest
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Waste Management 23 (2003) 61–88 www.elsevier.com/locate/wasman Management of municipal solid waste incineration residues T. Sabbasa‚ A. Polettinib‚*‚ R. Pomib‚ T. Astrupc‚ O. Hjelmard‚ P. Mostbauera‚ G. Cappaie‚ G. Magelf‚ S. Salhofera‚ C. Speiserg‚ S. Heuss-Assbichlerf‚ R. Kleinh‚ P. Lechnera (members of the pHOENIX working group on Management of MSWI Residues) BOKU University Vienna‚ Department of Waste Management-Nussdorfer La¨nde 29-31‚ A-1190‚ Vienna‚ Austria University of Rome ‘‘La Sapienza’’
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Name:Shin Park|Date:06/14/2013| Exp 5: Liquids and Solids|Lab Section: | Data Table: Boiling Point Trial 1 Trial 2 Trial 3 Temperature when the last bubble has emerged ___83_˚C __82__˚C __82__˚C Average temperature from all three trials ___82.33_˚C % error ___.0849_% Melting Point Trial 1 Trial 2 Trial 3 Temperature when the acetamide melts __82__˚C _81___˚C __82__˚C Average temperature from all three trials ___81.66_˚C % error
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Liquids & Solids Pre Lab Questions: 3pts 1. What are the learning goals of this lab? The learning goal of this experiment is to view and experience the melting point and boiling point of different substances. 2. Why is acetamide not allowed in contact with your skin? What precautions does one have to take to work with this chemical? Acetamide is a carcinogen‚ which can cause cancer. Therefore‚ it should not be allowed to come in contact with a person’s skin. Any person working with this chemical
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