UNIVERSITI TUNKU ABDUL RAHMAN Faculty Course : Engineering and Science Unit Code : : Bachelor of Engineering (Hons) Chemical / Mechanical Engineering Unit Title : Academic : Year Session : Lecturer 2014/2015 : UEME 3213 Heat and Mass Transfer Dr. Mah Shee Keat/ Mr. Chong Kok Chung 201501 Tutorial 2 1) A one dimensional plane wall of thickness 2L = 80 mm experiences uniform thermal energy generation of ?̇ = 1000 W/m3 and is convectively cooled at ? = ±40 mm by an ambient fluid characterized
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fm Page 517 Friday‚ May 21‚ 2004 1:48 PM Table 17.2 Heats of Combustion at 25°C Substance ∆H (kJ/mol) Formula Hydrogen H2(g) Ϫ286 Carbon C(s)‚ graphite Ϫ394 Methane CH4(g) Ϫ890 Acetylene C2H2(g) Ϫ1300 Ethanol C2H5OH(l) Ϫ1368 Propane C3H8(g) Ϫ2220 Glucose C6H12O6(s) Ϫ2808 Octane C8H18(l) Ϫ5471 Sucrose C12H22O11(s) Ϫ5645 Table 17.2 lists heats of combustion for some common substances. The heat of combustion is the heat of reaction for the complete burning of one mole of
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Calorimetry and Specific Heat Tessa Williams Chemistry 111 11/13/13 Abstract: In this experiment‚ the specific heat and the density of an unknown metal was determined in order to identify the unknown metal. The average specific heat of the unknown metal was 0.197˚C and was determined using a calorimeter. The density of the unknown metal was 6.57 g/mL and was determined using a cylinder and displacement. Using the specific heat value of the unknown metal and its density‚ it
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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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Miami Heat In this essay I will discuss three things about the Miami Heat (my favorite team). The first thing I will discuss is why I chose this topic. The second thing I will discuss about the Miami Heat is what I already know. The third and final topic I will discuss in this essay is what I want to find out about the Miami Heat. These are the topics that I will discuss in this essay. Why I Chose My Topic: Ever since I was young I’ve always loved
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HIGH ALBEDO HEAT REFLECTIVE PAINT Sunsheetal® is based on polyurethane-acrylic blended elastomeric aqueous polymers. It is a high thermal emittance ceramic coating useful in the world of industrial and commercial buildings‚ as a roof coating system that has the ability to reflect the visible‚ infrared and ultraviolet wavelengths of the sun‚ thereby reducing heat transfer to the building. Sunsheetal® is defined as a cool roof coating by virtue of its ability to radiate absorbed‚ or non-reflected
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Heat can be described as the increase in temperature until it becomes intolerable or unbearable. In literature‚ many authors use heat as a symbolic device to represent elements such as love‚ confusion and anger. In The Great Gatsby‚ Fitzgerald also uses the sweltering heat to enhance the mood and setting of the novel. The novel starts in spring but the climax occurs during the hottest days of the summer. In this essay‚ I will attempt to show that Fitzgerald effectively uses heat to show the passion
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Aim: Perform an experiment to determine the latent heat of fusion for milk. Materials: Calorimeter Celsius Thermometer Platform balance Kettle Milk ice cubes Stopwatch Hot Water Procedure: The copper cup was weighed and its mass was then recorded. The kettle was then used to boil water and this water was poured into the copper cup. The mass of the cup plus the hot water was calculated and recorded. The copper cup was then placed in the insulated container. The water’s temperature was
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urban heat island effect. In scientific terms‚ it is the difference between the temperature recorded in the urban environment and the temperature recorded in its rural surroundings. Heat waves will become more frequent in the next years. The urban heat island effect is
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between placid surface and hidden corruption structures The Big Heat‚ and the drama deals with a struggle between those forces which try to keep the lid on and those which want to force the hidden violence out into the open" (Tom Gunning). Discuss this claim in relation to the film. Somebody ’s going to pay because he forgot to kill me‚ this was the tagline featured on the poster for Fritz Lang ’s dark film noir classic The Big Heat which establishes the films undercurrents of violence and revenge
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