Free Temperature Change Essays and Papers

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    Temperature Changes During the Addition of Sulphuric Acid and Sodium Hydroxide Solution Aim To investigate the temperature changes during the addition of sulphuric acid and sodium hydroxide solution. Introduction In this experiment we are using sodium hydroxide, sodium hydroxide, sulphuric acid. We are trying to find out how much acid it takes to neutralise alkaline. But there are many things that could effect my final result and I think that the main thing will be measuring the acid

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    Investigating Temperature Change when Different Volumes of Acid and Alkali are Mixed Prediction ========== My prediction is that the biggest temperature change will be when there are equal amounts of H+ ions and OH-, this is because create an optimum mixture for the ions to neutralise each other. Apparatus ========= v Empty plastic yoghurt cup v thermometer v Hydrochloric Acid v Sodium Hydroxide v Two measuring cylinders [IMAGE] Diagram =======

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    Investigate the effect of temperature change on the rate of hydrolysis of starch using the enzyme amylase. Amylase investigation --------------------- AIM: To investigate the effect of temperature change on the rate of hydrolysis of starch using the enzyme amylase. These are variables that may affect the rate of the reaction: * concentration of amylase * concentration of iodine * temperature conditions of reaction * pH conditions of reaction I intend to investigate the

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    To investigate the temperature change in a displacement reaction between Copper Sulphate Solution and Zinc Powder Preliminary Experiment: Correlating Magnesium Powder and Copper Sulphate Solution ========================================================= I will mix 4cm of Magnesium ribbon and 50cm³ of Copper Sulphate Solution into a polystyrene cup until I find a reaction. =============================================================== Prediction ========== The magnesium will displace the copper

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    Weather changes with seasons. Unfortunately, it is not always ideal, so our amazing bodies constantly struggle in adjusting to the changes in temperature. Though not a tangible object, temperature is something we all possess, or have to live with throughout our entire lives. I decided to write about this topic during one of my son's final football games. It was a cold, windy and dark evening. It was the first evening (this autumn) that I had to wear my winter coat. I had a hard time concentrating

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    Investigating How the Rate of a Reaction Involving Amylase Differs as the Temperature Changes Planning: Our aim is to observe what effect varying the temperature will have on the rate of a reaction involving an enzyme. I predict that as the temperature increases, from 5oC, the rate of a reaction will increase till it reaches the optimum rate of reaction. After this the rate of reaction will decrease. This is due to the structural format of the enzyme. An enzyme is a globular protein

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    The Factors that Affect the Temperature Change Between Copper Sulphate and Iron Filings Aim The aim of this piece of coursework is toinvestigate the factors that affect the temperature change between Copper Sulphate and Iron filings. Affecting factors Ø The concentration of Copper Sulphate Solution (CuSO4) Ø The amount of Iron filings (Fe) used I have chosen to experiment using the 1st factor I will have to change the concentration of the Copper Sulphate Solution (CuSO4) Prediction

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    Task 4 “Midwest” Population – Home to 61 Million States – They include; Illinois, Indiana, Michigan, Wisconsin, Missouri, and Minnesota Temperature Expatiations Between 1900 and 2010, the average air temperature increased by more than 1.5°F. Temperatures are going to keep increasing across the Midwest, with the highest increases in average temperature expected in northern areas. Southern states will definitely experience more hot days, with a lot of days over 95°F and a couple days below 65°F

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    Impacts of Global Climate Change on Temperature and Precipitation Patterns in the Midwest and the Consequences for Soils Introduction During the last century, human activities in agriculture, industry and technology have brought about a change in the chemical composition of the atmosphere. This change so far has not had a noticeable or discernible effect on world climate, but if these same activities continue, global climate change will become irreversible. The major contributing factor is

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    The Effect of Temperature Change During the Dilution of a Strong Acid Introduction According to the Brønsted-Lowry acid-base theory, an acid is a reactant that loses a hydrogen ion to another reactant. A strong acid is when virtually all the molecules of the acid ionises in water. In this experiment, the strong acid used was hydrochloric acid. This acid is formed when gaseous hydrogen chloride reacts with water according to the equation: When in solution, the hydronium and chloride ions formed

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    and how it is affected. We could change: Room temperature Surface area Amount of water Use a lid Insulate around it Colour of tin We could measure / observe: Amount of time Temperature We will change: Surface area We will measure / observe: Temperature (every minute for 5 minutes) Our question is: Does surface area effect the rate of heat loss? We will keep these the same: Colour of tin Room temperature Amount of water Use a lid Insulate

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    1. The metal that it used- magnesium, copper or iron. 2. The amount of metal that is used- any amount as long as it is divisible by 0.5 grams. 3. The concentration of the solution of the solution- molarity 0.1M or 0.5M. I am going to change the amount of metal. Fair Test: To make this a fair test I must keep everything constant except the variable (the amount of metal). But even the variable must be changed at a consistent rate (going up in 0.5g). Method Apparatus List:

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    The Impact of Global Warming on Oceans

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    are vital aspects to our environment and it is necessary that we take care of them. On another note, global warming is an issue that is having effects on almost all aspects of our environment. Global warming itself means a gradual increase in the temperature of our Earth’s atmosphere over large periods of time. There is evidence that global warming has occurred in the atmosphere, however, now we are beginning to see its effects in the world’s oceans, as well. Though some may not see the connection that

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    dependant variables that I will keep the same will be the height of the tin can above the wick. I will keep this the same because different heights can effect the heat that is transferred to the tin can and into the water, therefore altering the temperature change. I will use the same tin can so that the experiment is fair and that different cans may be of different thicknesses so allowing different amounts of heat through. I will keep the amount of water that I put inside the tin can, the same for

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    coursework we are investigating the rates of reaction and he effect different changes have on them. The rate of reaction is the rate of loss of a reactant or the rate of formation of a product during a chemical reaction. We are studying the affect of changing concentration of Na2S2O3 Solution and dilute HCl. I believe these variables will affect the rate of reaction: · Surface area · Pressure · Temperature · Catalyst · Concentration Concentration ============= If the concentration

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    A level

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    that I have finalised and undertaken for this coursework is to build and test a sensor. I decided to build a sensor, which would automatically change the speed of a fan by using a thermistor. The main objective of the experiment was to monitor and record the voltage change as the temperature changes. Specifically, as predicting that when the temperature increases the voltage would increase and thus the fan speed would increase too, thus causing a cooling effect to the environment. Data Information

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    Investigating Fuels

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    Investigating Fuels To observe temperature change in Ethanol and Methanol. ======================================================= Introduction (scientific knowledge): ETHANOL ======= Ethanol is an alcohol-based alternative fuel produced by fermenting and distilling starch crops that have been converted into simple sugars. Ethanol ("Alcohol") C2H5OH ethanol[IMAGE] METHANOL ======== Methanol (CH3OH) is an alcohol fuel. Today a process using natural gas as a feedstock

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    Fossil Fuels and the Environment:

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    the amount of CO2 and other gases. While researching for this subject I also came across the problem of deforestation. Scientists say, since temperature changes could affect major climate patterns, alter species’ habitats, and have other unknown consequences. The melting of the polar Ice caps is the biggest cause for worry at the moment. Rising temperatures have a dramatic impact on Arctic ice, which serves as a kind of "air conditioner" at the top of the world. Since 1978 Arctic sea ice area has

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    Ocean Thermal Energy Conversion (OTEC) is the process of converting the ocean waters temperature difference at different depths into usable energy. From the solar heated upper depths of the ocean to the cooler depths below 2,000 feet a 40 degree temperature difference must be maintained to generate electricity. This is a relatively new and unheard of source of energy. Many people are not aware of the many benefits of OTEC and the impact it will have in the future as the use of fossil fuel conversion

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    carbohydrate or protein. The temperature change in water is caused by the absorption of heat given off by the burning of a known mass of food. Based on the change in temperature, you can calculate the amount of energy in food. If the room heats up more, this will not have an affect on the results because the water is hotter and so the results will not be higher than usual. It just means that the results will be the same but the initial starting temperature of the water will higher. Carbohydrates

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