by heat. For example‚ if a sample of copper sulfate pentahydrate is heated‚ the bright blue crystals of the hydrate are converted to the white‚ powdery‚ anhydrous salt. CuSO4.5H2O(s) CuSO4(s) + 5H2O(g) Blue white During the heating of copper
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Importance of electrical services in buildings Electricity has been part of our lives. It has brought many things that surely have made many wonders and life would seem so hard without it. Electricity powers our light‚ heating‚ electronic appliances such as computers and television‚ and a host of essential services that we take for granted. However‚ electricity has much more important aspects because it is a fundamental feature of all matter. Electricity is the force that holds together the
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crucibles with soap and water. Rinse the crucibles with distilled water and dry them with a paper towel. Check your crucible for cracks. Heating your crucible first without the hydrate. Prepare two set-ups as shown below using a clay triangle on a ring stand. Place each crucible on a clay triangle and heat the crucibles until red hot or for five minutes. Once the heating is complete‚ place the crucible on a clean wire gauze and let it cool to room temperature. Determine the mass of the crucible and lid
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heat is the amount of energy (in joules or calories) needed to raise the temperature of 1 gram of a pure substance by 1 degree Celsius Surface tension is a contractive tendency of the surface of a liquid that allows it to resist an external force Dielectric constant is the diminishing of the attraction of the ions for one another by the solvent Osmotic pressure is the pressure which needs to be applied to a solution to prevent the inward flow of water across a semipermeable membrane Hypotonic refers
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Mob. No. +919886110735 E-mail: bharat2131r@gmail.com BHARAT CHANDRA BABU An Electrical Engineer‚ B.E (Electrical) with more than 2yrs of experience‚ for last 21/2 years responsible for end to end activities related to Purchase / Procurement with National and International organization. Core function includes handling raw materials‚ Technical Specification of materials‚ ISO processes‚
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PROJECT IN T.L.E Electronic Components Diodes a diode is a two-terminal electronic component with asymmetric conductance‚ it has low (ideally zero) resistance to current flow in one direction‚ and high (ideally infinite) resistance in the other. A semiconductor diode‚ the most common type today‚ is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. A vacuum tube diode has two electrodes‚ a plate (anode)
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Energy Efficient Buildings Internal Heat Gains and Design Heating & Cooling Loads Internal Heat Gains People and electrical equipment in buildings give off heat. These internal heat gains must be included in energy balances on the building or zone to determine the net heating or cooling load. Heat Gain From People Typical sensible‚ latent and total heat rates given off by people are shown in the table below (ASHRAE Fundamentals‚ 2005). The sensible heat gain results from radiation and
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A heat pump always moves thermal energy in the opposite direction from temperature‚ but a heat pump that maintains a thermally conditioned-space can be used to provide either heating or cooling‚ depending upon whether the environment is cooler or warmer than the conditioned-space. When pumps are used to provide heating‚ they are used because less input from a commercial-energy source is required than is required for newly-creating thermal energy by
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Cydney Kessler Date of Experiment: 6/9/15 Report Submitted: June 10‚ 2015 Title: Observations of Chemical and Physical Changes Purpose: the purpose of this lab experiment is that I will be able to decipher the difference between a chemical and physical change. I will be about to tell whether a chemical change has occurred during the experiment or if it was a physical change and I will be
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* ------------------------------------------------- Top of Form * Three energy conversion processes take place in succession. The first has an efficiency of 51%‚ the second is 50% efficient‚ and the third 10%. What is the efficiency of the entire process? .0255 * Which of the following is true? Energy is created when a fuel is burned * Energy demand is a/an exponential function * In the process of mining coal‚ the useful energy output is in the form of chemical energy. * The potential
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