The specific latent heat of vaporization of a substance is the quantity of energy required to A. raise the temperature of a unit mass of a substance by one degree Celsius. B. convert a unit mass of liquid to vapour at constant temperature and pressure. C. convert a unit mass of solid to vapour at constant temperature and pressure. D. convert a unit mass of liquid to vapour at a temperature of 100°C and a pressure of one atmosphere.
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dogs. Pit bulls are often judged by their muscular bodies‚ large head‚ and strong jaws. Pit bulls are consistently portrayed in the media as aggressive as well. Because of this‚ pit bulls face a variety of different obstacles to overcome. From breed specific legislation (BSL)‚ to dog fighting‚ to homelessness and euthanasia‚ the list of obstacles to overcome may seem impossible. However‚ “Experts say that five factors affect a dog ’s tendency to bite: owner quality (quality of care‚ level of supervision
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01.03 Scientific Method Scenerio 2 1. The specific independent variable in Katherine’s investigation would be the amount of sunlight each plant will recieve‚ and the specific dependent variables would be the time of day and the water. 2. Five controlled variables in this investigation would be where she would place the plants‚ the type of plant she will use‚ the type of water she uses for each plant‚ the amount of water she uses per plant and the exact times she waters the plants in a day.
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In part A of the experiment the two values obtained for the specific heat capacity of the metal were about .0500 J/mol. This is a large deviation‚ with both of these values identifying very different metals. The average heat capacity identified the metal used as brass. The average heat capacity calculated was .3776 J/mol and the actual heat capacity of brass is .375 J/mol. The second run displayed the closest value to the actual value. A source of error that may have caused a large divide in the
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It is difficult to find accurate bite statistics. Some of the reasons are listed below. “Pit bull type dogs” are sometimes blamed for attacks that occur by other breeds The circumstances surrounding the attacks is not included The conditions in which the dogs were kept prior to the attack are not included Unless it was a fatality‚ the severity of the bite is often not included In writing about researching her book‚ Fatal Dog Attacks: The Stories Behind the Statistics‚ Karen Delise‚ Director
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PSC 41- Specific Heat Capacity and Latent Heat Constants: Specific heat capacity ofwater=4180 J Kg-1 K-1 Specific heat capacity of ice=2050 J Kg-1 K-1 Specific heat capacity of copper= 386 J Kg-1 K-1 Specific heat capacity of aluminum=900 J Kg-1 K-1 Latent heat of vaporization of water =2.26x106 J Kg-1 Latent heat of fusion of water = 3.34x105 J Kg-1 Density of water =1000 Kg m-3 Conversion : 1L ≡ 103 g for water 1) A 12.5 g sample of an unknown metal‚ heated to 99.0
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URANIUM TALENT SEARCH EXAMINATION(UTSE) - 2011 (CBSE/ICSE) Time: 60 minutes(11 am - 12 noon) Class- IX F.M - 180(+3/-1 system) Declaration of Result in the internet(www.theuranium.org) : 15.03.2011 (There are 60 MCQs and each has one correct answer. You are required to darken the appropriate circle in the OMR answer sheet with the help of a HB pencil. Eraser can be used to change any answer. Note that improper darkening will make your answer sheet invalid by the computer. 3 marks will be given
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temperature. The change in temperature will allow us to work out the energy given off the fuel by using this formula: Mass of water x 4.2 (water’s specific heat capacity) x temperature change = energy transferred from the fuel to the water When the fuels are burnt‚ energy is given off. I will be calculating the energy given off using the formula above. The specific heat capacity is the energy needed (Joules) to heat 1 gram of water by one degrees Celsius. Preliminary Experiment To help me decide the vital
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It is understood that most people have come in contact with a pit bull at some point in their lifetime and‚ in some cases‚ they were positive experiences. Many people argue that the pit bulls in which they have met were always very sweet dogs. This may be true‚ however‚ pit bulls have displayed their ability to viciously snap without warning. Warning signs were culled out of their genes to make them the most effective at fighting other dogs. Pit bull owners who had witnessed their beloved pet lash
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1. Define Temperature‚ thermal energy and heat. 2. A 1.00 x 10²g mass of tungsten at 100°C is placed in 2.00 x 10²g of water at 20.0°C. The mixture reaches equilibrium at 21.6°C. Calculate the specific heat of tungsten. Cw = 4180 J/kg°C C= 171 J/kgOC 3. A certain metal has a specific heat of 400 J / kg oC. It absorbs 8000 J of thermal energy which causes its temperature to raise 10oC. How much mass of the metal is present? M=2kg 4. How is the direction of an electric field defined
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