Thermochemistry Thermochemistry is the study of heat evolved and absorbed during the chemical reactions. The system is the interest of the universe; the surroundings are the rest of the universe in which the exchange of the energy with the system takes place. Both‚ the system and the surroundings make up the universe. Heat flow is the transfer of heat from a warm place to a cooler one. System to surroundings: Surroundings to system:
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These animals rely on the outside environment for their body heat as they do not generate heat internally like a mammal or bird. Ectotherms have a variety of adaptations‚ many of them behavioural‚ to regulate their body temperature and keep it within the range in which they can be active; 10-30oC The Tiliqua or more commonly known as the blue-tongue lizard or just Blue tongue is the largest member of the skink family in Australia. There are six species of blue-tongued lizards or skinks in Australia
Free
is the temperature at which water changes phase from a liquid to a solid or vice versa. The freezing point describes the liquid to solid transition while the melting point is the temperature at which water goes from a solid (ice) to liquid water. In theory‚ the two temperatures would be the same‚ but liquids can be super cooled beyond their freezing points so that they don’t solidify until well below freezing point. Ordinarily the freezing point of water is 0° C or 32° F. The temperature may be lower
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Mountain") is an active volcano on the island of Mindanao in the Philippines. It is 4.5 kilometres south of the city of Valencia‚ province of Bukidnon‚ and 81 km southeast of Cagayan de Oro City BACKGROUND The low cone is grass-covered and andesitic-to-dacitic in composition. Musuan last erupted in Dec 1886‚ as a Jesuit priest reported who visited the volcano 4 years later in 1891‚ at which time there was still strong fumarolic activity‚ which prevented closer examination. The eruption was probably phreatic
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The Effect of catalase reaction on temperature Table of Contents: Bibliography ………………………………………………………………………………………………….. Page 1 Introduction……………………………………………………………………………………………………Page 2-3 Methods/ Procedures……………………………………………………………………………………..Page 4-5 Results ………………………………………………………………………………………………………….. Page 6 Analysis of Data ……………………………………………………………………………………………. Page 6 Graph …………………………………………………………………………………………………………... Page 7 Conclusion……………………………………………………………………………………………………
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Chapter 15 & 16: Temperature‚ Heat & Heat Transfer Temperature is a measure of the average (not total) translational kinetic energy. ●ex: there is 2x as much total molecular kinetic energy in a 2L of boiling water than one‚ but the temp of the two volumes are the same (average of translational kinetic energy per molecule is the same in each → Internal Energy- the total of all molecular energies: kinetic+potential (SAME TEMP) ● Ex: apply a flame to 1L h2o for a certain time and its temp rises
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An investigation into the effects of temperature on enzyme action An enzyme is a biological catalyst that speeds up the rate of reaction in certain biological functions. They play a vital role in many aspects of human physiology and are necessary for the functioning of a number of systems‚ for example in the digestive system to help to break down food. All enzymes have a unique active site that can fit on to a particular molecular arrangement on a target substrate; a substance e.g. carbohydrate
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Diffusion‚ Osmosis and Active Transport Substances will move through the membrane by diffusion. This is the random spreading out of particles until they are even. For example‚ when you put your instant coffee in boiling water‚ the coffee particles spread out and fill the entire mug‚ this is diffusion. A second way that substances can move through the cell membrane is by osmosis. This is a special type of diffusion where water moves from a high to a low concentration through a ’partially permeable
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“People with a serious illness have priorities besides simply prolonging their lives‚” he writes. “If your problem is fixable‚ we know just what to do. But if it’s not? The fact that we have had no adequate answers to this question is troubling and has caused callousness‚ inhumanity and extraordinary suffering‚” spoken by the renowned physician‚ Atul Gawande (Fink). The question that he poses is the essence of the controversy of euthanasia that is presented in the medical community today. When a
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Lectures 8 and 9: Active Bond Portfolio Strategies Joëlle Miffre 1 Active Bond Portfolio Strategies Market Timing: Trading on Interest Rate Predictions Riding the Yield Curve Timing Bets Based on Interest-Rates Level When Rates are Expected to Decrease When Rates are Expected to Increase: Roll-Over Strategies Bets on Specific Moves of the Yield Curve Barbell‚ Bullet‚ Ladder‚ Butterfly Other Semi-Hedged Strategies: Ladder Hedged against Slope Movement Active Fixed-Income Style
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