25g of Perspex in the glass bulb. A thermocouple is placed between the glass bulb and heating coil to measure the temperature. Temperature is recorded everytime the height of Hg column change by 1 cm. When the temperature reach 120°C switch off the heat supply. Continue taking the readings as the temperature falls until 60°C. Results Height of Hg column while heating (cm) | Temperature (°C) | Height of Hg column while cooling (cm) | Temperature (°C) | 19.1 | 60.9 | 35.4 | 118.9 | 20.1 |
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Laboratory Report: Flame Colors of Metals Abstract The experiment about flame color of metals demonstrates how electrons jump into their excitedstate from their ground state as it came in contact with heat. As it return to its lower energy state‚it emits the absorbed energy in the form of light. A platinum or nichrome wire was dipped into aconcentrated HCL and was heated to clean it. The wire was dipped into different salt solutionsand heated in order to determine the metallic ion’s color and wavelength
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The effect of temperature on the cell membranes of beetroot cells and amount of pigment released. Apparatus • Corer size 4 • White tile • A Beetroot • Automatic Water Bath • Segregated knife • A thermometer • Stopwatch Method: • First take the white tile and the corer. Then collect a cylinder of beetroot by pushing the corer into the beetroot and withdrawing it. The cylinder remains inside the corer- so push it out with the end of a pencil. • Collect 3 cylinders
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Does Temperature of Kernels Affect Popcorn Yield? Project Design Plan This experiment will attempt to determine if the temperature that popcorn kernels are stored at will affect the amount of un-popped kernels when using a hot air popcorn popper. Popcorn kernels contain moisture inside of them which‚ when heated‚ turns to steam and expands that in turn causes the kernel to explode. Popcorn.org states that loss of moisture content can cause less yield amounts when popping popcorn (popcorn.org‚ 2014)
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of Food Date Submitted: April 1‚ 2012 Date Performed: April 1‚ 2012 Lab Section: Chem-180-DL1 Purpose: The purpose of this lab was to measure the energy content of three different food items using the change in water temperatures from the heat of the food. Another purpose was to take the information acquired and become familiar with energy units used in food such as calories and joules. Procedure: The first step in this experiment was to weigh and record an empty 100mL beaker. Then fill
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It was in 2nd century B.C that the first bath houses were built and back then they were simple washing facilities for men only. By the time of Augustus there were 170‚ privately owned bath houses. As they became more popular in the imperial age‚ they became public bath houses and people went there to bathe‚ meet‚ or discuss business. However‚ men and women did have different bath houses.• You had to pay to use the baths. • You could buy refreshments at the baths. • Only the very biggest baths had
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four. She developed pneumonia and checked in to Good Hope Hospital‚ Birmingham to be treated in the intensive care unit. While being treated for low serum potassium levels her nurse Mrs. Lisa Sparrow‚ RN entered an incorrect time frame on the infusion pump giving her a fatal amount of potassium chloride in one hour instead of over five hours. I will walk through this incident and illustrate the areas in which checkpoints that are set up for nurses should have been utilized to avoid this unfortunate event
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First Question It is common for houses in cold climates to be build out of wood‚ because the cold climate doesn ’t weather wood‚ thus providing more longevity to the house; wood helps in trapping heat so the heat that is emitted from he lights in the houses during winter is captured by wood and stored in it‚ works as cold insulator‚ allows building layered walls that helps in installing a layer of cold insulator within the walls References: [1] http://home-and-constuctions.blogspot.ca/2010/02/wooden-houses
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Windmill Speech Here I am‚ Comrades‚ standing in front of you on this fine Sunday morning rested and relaxed while you are all tired and worn out. And why is that‚ Comrades? It’s because you work Monday all the way through Saturday from dawn to dusk doing miserable‚ laborious‚ and backbreaking work. But the pigs‚ oh the pigs‚ they don’t work. They sit around and watch you and tell you what to do‚ but they never work. In fact‚ they don’t do anything except boss us all around and tell us lies about
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experiment‚ the group were able to perform the following objectives; to compute the heat capacity of a Styrofoam-cup calorimeter‚ and also to compute the heat of neutralization of 1.0 M hydrochloric acid and 1.0 M sodium hydroxide‚ the heat of dilution of concentrated sulfuric acid‚ and the heat of solution of solid ammonium chloride The sixth experiment was named "Calorimetry" wherein it is the measurement of how much heat is gained or released by a system as a chemical reaction occurs within it. The
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