vibrating around‚ the hotter the object feels. We can sidestep this molecular picture by dealing with objects as a whole‚ and treating the energy transfer as the flow of heat‚ rather than kinetic energy transfer among particles. |Specific Heat for Various Materials | |Material |Specific Heat | | |(J/kg C°) | |Water |4186 | |Aluminum |900
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6. Applications * Is it possible to add heat to a body without changing its temperature? Yes. It is possible to add energy to a body (in the form of heat) and not raise its temperature by causing a phase change. When you heat ice it takes energy to convert it from ice to water‚ but does not change the temperature of the body until it is all converted. The principle behind this is what we call latent heat. It refers to the energy (or heat) required to change the state of a substance without changing
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Science Chemistry Controlled Assessment- Part 3 Analysis and Evaluation 1) Process the data you have collected and plot a graph(s) of the results of your expected results Please refer to the graph attached to the document for the answer to this question. 2) Describe any patterns or trends in your results. Comment on any unexpected results. Due to the positive correlation that my graph shows‚ I can infer that the more mass of CaCl2 added then the higher the energy release. Through further calculations
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MADALANG‚ Kyle Marron A. kyle.madalang@yahoo.com E302: Heat and Calorimetry METHODOLOGY The experiment was conducted following a two part procedure as follows. In the first part‚ the procedure aims to determine the specific heat of metals‚ specifically‚ the brass and aluminum‚ both undergone the following procedure‚ irrespective of their kind to which shall be used first. First‚ the mass of the metal ()‚ the inner calorimeter () and the water () in the calorimeter in grams was determined through
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Title: To investigative the Energy Content of Different Foods. Identifying the problem: The energy content of a food sample‚ of known mass‚ was investigated by using a single calorimeter and the word equation below: Heat energy (J) = Mass (g) x Specific heat capacity of water (4.25/g°C for water) x Change in temperature (°C). Dividing the resulting energy value by grams of food burned gives the energy content (in J/g). I predict that that the Brazil nuts will have the highest energy
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sure to look over all your notes and be sure to know the following things) 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
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Page 12 1 a) Between t = 30 and t = 45 mins b) 7.5 mins c) i) distance travelled = area under graph between t = 0 and t = 12½ mins ii) average speed = total distance travelled total time for journey = total area under graph 60 mins 2 a) ∆v = 32 m/s a =10 m/s² t = ∆v = 32 = 3.2 s a 10 b) 3 a) OP – constant acceleration PQ – constant acceleration (greater than OP) QR – constant speed RS – constant deceleration b) O and S c) 6 m/s d) 70 s e) Total distance travelled = area under
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able to store and absorb heat. With this property‚ heat lost is able to be prevented during night time and maintaining thermal comfort of interior during day time. In addition‚ bricks also consist of the characteristics of acoustic isolation. As bricks has greater density‚ thus it is able to provide higher acoustic insulation. Moreover‚ brick has high efficiency in revisiting and preventing the spread of fire due to its low thermal conductivity and high heat capacity. Low thermal conductivity
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Ocean County College Department of Chemistry [Caloric Content of Food] Submitted by Jamie Kaiser Date Submitted: 10/2/12 Date Performed: 10/2/12 Lab Section: Chem-180 Course Instructor: Bassa Purpose The purpose of the experiment was to take foods
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water vapor D.energy E.none of the above Answer Key: D Feedback: the characteristics of matter are discussed in chapter 3 Question 7 of 22 2.0/ 2.0 Points `If I apply 0.0385 kJ of heat to 0.0175 kg of an unkown metal‚ and I am able to raise its temperature from 27.0 °C to 30.0 °C‚ what is its specific heat? (Pay attention to units in this problem) A.0.73 J/g∙°C B.4.18 J/g∙°C C.0.15 J/g∙°C D.1.4 J/g∙°C E.none of the
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