SPECIFIC HEAT OF VARIOUS METALS M. L. C. G. Marasigan‚ R. R. Mella‚ J. M. M. Mendones‚ M. A. Miranda‚ R. P. Nool‚ C. P. R. M. Orpilla‚ K. L. Pascual College of Engineering‚ Adamson University Abstract THIS EXPERIMENT IS ABOUT THE SPECIFIC HEAT OF VARIOUS METALS. THE MAIN OBJECTIVES OF THIS LABORATORY ACTIVITY ARE TO DETERMINE THE SPECIFIC HEAT OF METALS AND TO COMPARE THE EXPERIMENTAL RESULT OF SPECIFIC HEAT FROM THE STANDARD VALUE. ANOTHER PURPOSE OF THIS EXPERIMENT IS TO
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THERMAL EXPANSION HEAT MYP-5 | 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 expansion is the tendency of matter to change in volume in response to a change in temperature. When a substance is heated‚ its particles begin moving more and thus usually maintain a greater average separation
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SOLA 4012/9007 - Session 1‚ 2011 SOLA 4012 /9007 Grid Connected PV QUIZ week 9 –S1 2011 SOLUTIONS – Version A Other versions just had the answers moved around‚ the questions were the same. 1. (1 Mark) A module subject to shading is in a string of modules. The modules do not have bypass diodes or blocking diodes installed. The worst case power dissipation for the shaded module occurs when… a. b. c. the string is open circuited the string is short circuited reverse current flows in the string
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The schematic of an automatic cooler fan for audio amplifiers is given here. The circuit automatically switch ON the cooler fan whenever the temperature of the heat sink exceeds a preset level. This circuit will save a lot of energy because the cooler fan will be OFF when the amplifier is running on low volume. At low volume less heat will be dissipated and it will not trigger the cooler fan ON. The temperature is sensed using an NTC (negative temperature coefficient) thermistor R2. Junction of
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Introduction I am investigating factors that affect heat loss from a body. All athletes become hot during exercise and need to be aware of how fast their bodies will cool down after the exercise. In extreme conditions the continued drop of body temperature may cause hypothermia. Hypothermia is caused by the core body temperature dropping below 35degrees. This is why it is important to how quickly the body loses heat and what affects it. Heat is lost from the body in 3 different ways conduction
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Data and Observations : Part I: Insert a complete data table‚ including appropriate significant figures and units‚ in the space below. Also include any observations you made over the course of Part I. Metal Aluminum Zinc Iron Cooper Mass of metal 27.776 g 41.664 g 34.720 g 41.664 g Volume of water in calorimeter 26.0 mL 26.0 mL 26.0 mL 26.0 mL Initial temp. of water in calorimeter 25.3 degrees C 25.3 degrees C 25.3 degrees C 25.3 degree’s C Temp of hot water and the metal
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• The equilibrium law DYNAMIC EQUILIBRIUM forward A +8 reaction ""r=====~’~ reverse reaction Most chemical reactions do not go to completion. Once some products are formed the reverse reaction can take place to reform the reactants. In a closed system the concentrations of all the reactants and products will eventually become constant. Such a system is said to be in a state of dynamic equilibrium. The forward and reverse reactions continue to occur‚ but at equilibrium
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Energetics Worksheet 1. Calculate a value for the Lattice Energy of Calcium Chloride from the following data. Draw energy cycles Std. Enthalpy of Formation of CaCl2 = - 795 kJ/ mol Std. enthalpy of atomisation of calcium = + 177 kJ/mol Std. enthalpy of atomisation of Chlorine = +121 kJ/mol 1st ionisation energy of calcium = +590 kJ/mol 2nd ionisation energy of calcium = +1100 kJ/mol Electron Affinity of chlorine = -364 kJ/mol 2. Draw Born-Haber cycles and calculate the L.E. of Cu2O and CuO
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FIRE TRIANGLE In order to understand how fire extinguishers work‚ you first need to know a little bit about fire. Four things that must be present at the same time in order to produce a fire : * Enough oxygen to sustain combustion. * Enough heat to raise the material to its ignition temperature. * Some sort of fuel or combustible material. * The chemical‚ exothermic reaction that is fire. Take a look at the following diagram called the “Fire Triangle”. Oxygen‚ heat‚ and fuel
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Salon Manager Check list Main Types of Hazard Managing the Risk The following highlight some of the hazards that may exist in your premises‚ They are by no means exhaustive and will vary depending on your own particular business. As a starting point use the blank sheet provided in this pack and carry out your own simple risk assessment. Safety in Beauty Salons Slips‚ trips and falls Most accidents occur when staff trip over trailing leads and uneven floor surfaces‚ or fall when trying
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