PHYSICS FORM: 4D & 4E TOPIC: THERMAL PHYSICS Temperature determines the direction of net heat flow. It is the property o f an object. It’s the amount of kinetic energy a body possesses. Example Brass rod made hot at one end by placing it in a Bunsen flame‚ while other end is kept away at room temperature‚ there is a net transfer of energy from the high temperature region to the low temperature end. THERMAL EXPANSION (See chp. 16 in Physics Text). Three states of matter are solids
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Title of contents Executive Summary 1.0 Introduction……………………………………………………………………1 2.0 Political Environment………………………………………………………..2 2.1 government stability………………………………………………………… ...2 2.2Government and contribution……………………………………………… …2 2.3 Analysis ………………………………………….……………………………2 3.0Legal Environment………………………………………………………….. 2 3.1Regulatory framework………………………………………………………… 2 3.2Business laws ………………………………………………….. ……………..3 3.3Labour laws ………………………………………….. ………………………..3 3.4 Analysis …………………………………………
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potential of an ideal solution Regular solutions: Heat of formation of a solution Activity of a component‚ Henry’s and Raoult’s laws Real solutions: interstitial solid solutions‚ ordered phases‚ intermediate phases‚ compounds Equilibrium in heterogeneous systems Reading: Chapter 1.3 of Porter and Easterling‚ Chapters 9.5‚ 9.6‚ 9.9‚ 9.10 of Gaskell MSE 3050‚ Phase Diagrams and Kinetics‚ Leonid Zhigilei Solid Solutions (terminology) Solid solutions are made of a host (the solvent or matrix) which dissolves
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of how good a material is at conducting heat is known as its thermal conductivity. Thermal conductivity is defined as the rate at which heat flows through a certain area of a Object of the experiment is to determine the thermal conductivity of metals and insulation body.materials and also to demonstrate that heat flow is directly proportional to temperature differences between faces and to cross sectional area. Thermal conductivity is defined as:
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1. Thermal inertia is a measure of the thermal mass and the velocity of the thermal wave which controls the surface temperature of a material. In heat transfer‚ a higher value of the volumetric heat capacity means a longer time for the system to reach equilibrium. 2. The ocean acts as a massive heat-retaining solar panel. 3. Salinity‚ temperature and depth all affect the density of seawater. 4. A pycnocline is the cline or layer where the density gradient (∂ρ⁄∂z) is greatest within a body of water
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ZyeTazja McArthur March 21‚ 2013 6th Per Heat Boggle Project Conduction -The process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential Example: Teaspoon dipped in hot water-Touching a stove and being burned -Ice cooling down your hand-Boiling water by throwing a red hot piece of iron in it Convection -The movement caused in a fluid of hotter and less dense material to rise‚ and colder‚ denser material
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THERMAL POLLUTION It is one of the pollution that effects on living things and the environment badly. The definition of thermal pollution is the degradation of water quality by any process that changes ambient water temperature. A common cause of thermal pollution is the use of water as a coolant by power plants and industrial manufacturers. When water used as a coolant is returned to the natural environment at a higher temperature‚ the change in temperature decreases oxygen supply‚ and affects ecosystem composition
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ENHANCING POWER ELECTRONIC DEVICES WITH WIDE BANDGAP SEMICONDUCTORS BY SUNEEL KUMAR M-TECH(POWER ELECTRONICS) Silicon carbide (SiC) unipolar devices have much higher breakdown voltages than silicon (Si) unipolar devices because of the ten times greater electric field strength of SiC compared with Si. 4HSiC unipolar devices have higher switching speeds due to the higher bulk mobility of 4H-SiC compared to other polytypes
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Thermal Expansion happens a lot in everyday life. When something is heated and expands this is Thermal Expansion. The way Thermal Expansion works‚ is when it is heated the atoms expand‚ and then when it is cooled it shrinks. Several examples of Thermal Expansi Thermal Expansion happens a lot in everyday life. When something is heated and expands this is Thermal Expansion. The way Thermal Expansion works‚ is when it is heated the atoms expand‚ and then when it is cooled it shrinks. Several
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ABSTRACT Electronic Banking system has become an important practice among Commercial banks in Nigeria. The introduction of the electronic banking has improve banking efficiency in rendering services to customer. In line with his study the is to aim at examine the impact of electronic banking system in Nigeria. Through the cluster sampling techniques‚ data was collected by means of questionnaires from 40 unity bank Officers and the result shows that Unity Bank electronic banking guidelines are in
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