experiment would be extremely inaccurate. In addition to this‚ the amount of time taken to transport the test tubes from the location where it was heated/cooled and the location where the testing took place was far enough to where the test tube could heat up/ cool down in the process of transportation. In order to fix it (or at least minimize the damage done)‚ the transportation time was reduced as best as possible. One error that was made had to do with the measuring of the catalase. It was not measured
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The most common kind fuel for boiler The most common kind fuel for gas fired boilers in North America is natural gas. The reason why natural gas is used in boilers is obvious in most areas it is the cheapest heating fuel available. The main reason why natural gas is so cheap is that it is normally pumped directly to homes and business through buried pipes. In most areas these pipes serve most homes and businesses. All a person normally has to do to get natural gas delivered to their home is
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Thermochemistry Lab Purpose: This lab taught procedures for determining heat of capacity of a calorimeter and measuring enthalpy of change for three reactions. It also enforced methods of analyzing data obtained through experimentation and calculating enthalpy. These procedures are used in the branch of thermodynamics known as thermochemistry which is the study of energy changes that accompany chemical reactions. Concepts from this lab can be used to determine the potential energy of a chemical
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IGCSE COURSEWORK - CHEMISTRY Name:Alessia Rovegno Class: S3scA Teacher: Mr tinwin Date:1-3-13 Experiment number: Ch 3 Title: Which is the Best Fuel? Mark awarded: C1 Coursework checklist (Following instructions) | Needed for | Student | Teacher | Comments | Follows written‚ diagrammatic or oral instructions to perform a single practical operation –measures water vol | 2 | | | | Use familiar apparatus and materials adequately and safely – safety glasses | 4 | | | |
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207 FIRST LAW OF THERMODYNAMICS The Carnot cycle is the most efficient cycle possible for a heat engine. An engine that operates accordance to this cycle between a hot reservoir (Til) and a cold reservoir (Te) has efficiency ef ’ lmax = In Tc I - -T II Kelvin temperatures must be used in this equation. Solved Problems 20.1 III In a certain process‚ 8.00 kcal of heat is furnished to the system while the system does 6.00 kJ of work. By how much does the internal energy
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piece of equipment with a flat‚ roughly triangular metal surface that‚ when heated‚ is used to press clothes to remove creases. Ironing works by loosening the ties between the long chains of molecules that exist in polymer fiber materials. With the heat and the weight of the ironing plate‚ the fibers are stretched and the fabric maintains its new shape when cool. description: The electric iron must have a design and an electric iron basically consist of basically a heating coil and thermostat
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tube * Measuring cylinder (25 cm3) * Bunsen burner * Heat resistant mat * Mounted needle * Teaspoon * Stand and clamp * Bread Safety: Wear eye protection. You must NOT taste or eat any of the foods used in the experiment. Method: Using a test-tube a. Measure 10 cm3 of water into the test-tube. b. Clamp the test-tube in the retort stand at an angle as shown in the diagram‚ and over a heat resistant mat. Apparatus set-up c. Weigh a small piece
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Oeiras International School Oeiras International School Gonçalo Diogo Santos‚ Yr. 11.1 Mr. Bruce Lomba Monday‚ May 6‚ 2013 Gonçalo Diogo Santos‚ Yr. 11.1 Mr. Bruce Lomba Monday‚ May 6‚ 2013 Thermal Physics (Heat) Thermal Physics (Heat) One World Essay One World Essay Introduction On this essay I am going to investigate about how thermal physics interfere with the construction of railways. I was given the possibility to choose between explaining how thermal physics is used in the
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their energy directly from the sun. 2. Plants have multiple sources of food (heterotrophic as well as autotrophic). 3. Carbon dioxide‚ water‚ and minerals are food. 4. Plants feed by absorbing food through their roots. 5. Plants use heat from the sun as a
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Abstract- A new heating method for hyperthermia using microwave and ultrasound simultaneously is proposed‚ and temperature distributions are obtained by computer simulations. The results have shown that the simultaneous use of microwave and ultrasound can heat wider and deeper region than the sole use‚ and can reduce the input power of microwave and ultrasound. This implies that we can reduce the hazards that high power microwave and ultrasound may bring about. SUMMARY: In hyperthermia‚ tumors are
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