The effect of temperature on a reaction rate In this experiment I shall be investigating how temperature affects the rate of reaction Rates of reaction The Factors that affect the rate of reaction are temperature‚ surface area‚ concentration‚ catalysts‚ light and pressure Surface area – Surface area is the amount of solid surface that is available for reaction - Only affects solids so this will not affect our
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Biology coursework How does the temperature affect the rate of reaction? Introduction For our experiments‚ I was investigating what affects the rate of reaction. We used Hydrogen peroxide to test the rate of reaction‚ with the temperature of this being our variable that we changed. Hydrogen peroxide is a clear‚ colourless liquid which has various amounts of uses within the laboratory‚ industrial purposes and even in our households. It is mainly used for cleaning products and hair dye but is
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Affecting the rate of Hydrogen Peroxide degradation using Catalase Introduction An enzyme is a globular protein which functions as a catalyst that speeds up the rate of a reaction without being consumed in the reaction. An enzyme-catalyzed reaction occurs when a substance called the substrate binds onto the active site of the enzyme. This joining allows for a reduction in the activation energy and the reduction in activation energy helps the reaction to occur at a quicker rate. Enzyme reaction
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Chlorine in Photosynthesis Experiment Abstract Photosynthesis the means by which green plants and different types of organisms use light from the sun to synthesize foods from CO2 and H2O. Chlorine is a chemical element usually in the form of a yellow-green gas and is a strong oxidizing agent. Elodea is a type of aquatic plant also known as waterweed that is native to North America. In the experiment that took place‚ the effect of chlorine in the presence of photosynthesis reactions were studied
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Introduction The purpose of this experiment was to determine the rate law graphically from the rate of disappearance and the x y values also the specific rate constant (k). Activation energy was also determined‚ and the effect of catalyst was evaluated in the reaction between peroxodisulphate ion S2O82-‚ and iodide ion‚ I-. S2O82-(aq) + 3 I-(aq) --> 2 SO42-(aq) + I3(aq) The general expression for the rate law‚ given this overall reaction‚ is: rate of disappearance of S2O82- = k[S2O82-]m[I-]n Chemical
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Biol 1406‚ Instructor: Alice Zhou Updated 4/18/12 Chapter 10: Photosynthesis 1. Describe the energy transformation that occurs in photosynthesis. Solar energy to chemical energy specifically stored in sugar. SolarChemical energy (sugar) 2. Write the summary equation of photosynthesis. Solar + 6CO2 +6H2O C6H12O6+6O2 (simple) Complex 3. Photosynthesis produces organic sugar molecules. Where does the carbon come from in making the sugars? From carbon dioxide 4. Aerobic
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Aim: To observe the effect of temperature on the rate of the iodine clock reaction using ammonium persulfate Assessment criteria: Design Variables: Table 1.1: List of dependent and independent variables. S.No | Dependent variables | Independent variables | Controlled variables | 1. | Rate of reaction | Temperature | Concentration | 2. | - | - | Pressure | 3. | - | - | Volume | Hypothesis: The iodine
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Once Upon a Time by Gabriel OkaraOnce upon a time‚ son‚they used to laugh with their heartsand laugh with their eyes:but now they only laugh with their teeth‚while their ice-block-cold eyessearch behind my shadow.There was a time indeedthey used to shake hands with their hearts:but that’s gone‚ son.Now they shake hands without heartswhile their left hands searchmy empty pockets.‘Feel at home!’ ‘Come again’:they say‚ and when I comeagain and feelat home‚ once‚ twice‚there will be no thrice-for then
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then ideological sound. Triangulation as obvious as it sounds uses triangles. So‚ using a three sided shape how can we measure distances in outer space? It sounds complicated but really it isn’t. Using the following chart may help with the understanding of triangulation Triangulation is not the only measurement astronomer’s use. The other is the standard candles way. The standard candle method is the measuring of distance where the use of specific objects’ luminosity is used to measure distance
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BS0005-Physiology PRACTICAL(2012/13) : Measuring Body Parameters Dates and time: 11th April-11.00-12.30pm (group 1); 18th April- 9.30-11 (group 2); 18th April- 11.30-1pm (group 3); Location: CE201; Staff: Mohammed Meah‚ Varoopah‚ Susan Harrison Aims: 1. To make simple measurements of body parameters 2. To assess whether they fall in the normal range Introduction In this practical you are going to measure your height (cm) and weight (Kg)‚ % skinfold fat‚ pulse rate (b/min) and blood pressure
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