background we told you that some countries place ice to ice but we also said salt is placed on ice on a hand –cranked ice cream maker. Doesn’t melting happen when the temperature of another thing (may it be air‚ water‚ or a solid) in contact is higher than the melting point of the substance (which is the ice which melts at any temperature higher than 0⁰C or 32⁰F) and the ice or snow on the road melts when it is in contact with ice faster so does it mean the salt makes things hotter but does it make that
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Goldfish (Carassius auratus) are ectothermic (cold-blooded) animals. This means that their body temperature changes with the change in the environmental temperature. When there is a low water temperature a fish slows down and so do its metabolic activities and when water temperatures are high‚ fish speed up and their metabolic processes increase as well. Proteins and enzymes are also affected by temperature changes. Oxygen is essential for the production of ATP from nutrients in cells; consequently
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Extracting the hot air drying kinetics model In the hot air drying‚ moisture ratio at three temperatures of 40‚ 50 and 60°C was obtained and fitted with the existing models in Table 1. Table 2 shows the coefficients and statistical indicators related to these models in the hot air drying method. The Page and modified Page models better than other ones predict moisture ratio based on the temperature of the dryer and the drying time. Values of R2‚ χ2 and RMSE for the two models in the hot air drying
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throughout our environment. In this experiment‚ the temperatures of organisms in a biophysical environment were analyzed to see if a pattern could be recognized that was related to the behavior of an ectotherm. An ectotherm is an organism that relies on the environment to regulate its body temperature. Organisms such as Pseudemys (turtles) and Lacertilia (lizards) are examples or ectotherms. After arriving at Maxcy Gregg Park and analyzing the temperatures of four microhabitats within two habitats with
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The differences in the characteristics of states of matter are given in the following table. S. No. | Solid state | Liquid state | Gaseous state | 1. | Definite shape and volume. | No definite shape. Liquids attain the shape of the vessel in which they are kept. | Gases have neither a definite shape nor a definite volume. | 2. | Incompressible | Compressible to a small extent. | Highly compressible | 3. | There is little space between the particles of a solid. | These particles have a greater
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data table shows‚ the temperatures at initial point‚ after and the change in temperature of the reaction between K2CO3(s) with HCl (aq) The change in temperature is calculated as: After temperature – initial temperature= change in temperature K2CO3 | The temperatures of each trial at ± 0.10K | Trials | Initial ± 0.5% | After ± 0.4% | Change ± 0.9% | 1 | 21.600 | 23.700 | -2.100 | 2 | 22.200 | 24.600 | -2.400 | Therefore the Average can be calculated for the temperature: The equation shows‚
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reaction is a exothermic reaction‚ when the heat released by it is absorbed by water‚ the temperature of the water increases. The heat produced by the reaction can be calculated if it is assumed that all the heat is absorbed by the water. Heat change of reaction=-heat change of water =-mH2O×cH2O×△TH2O As the water has gained the heat produced by the reaction‚ the heat change of reaction is negative when the temperature of the water increases. As the heat change observed depends on the amount of reaction
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CONCLUSION The experimentally obtained data collected for the reaction between IO3- and HSO3- at various temperatures is clearly supported by the Arrhenius equation. Referring to Graph 1.7‚ the line of best fits clearly passes through most of the data points displaying a linear relationship between temperature and the rate of the reaction. The R-squared of the graph which is a statistical measure of how close the data are to the fitted regression line is 0.9818. This number is extremely low which
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CHRISTMAS CACTUS CARE AND INFORMATION While the poinsettia remains the most popular of the holiday plants‚ a healthy Christmas cactus in full bloom is a great gift idea for that special gardener. They are easy to care for and can be grown indoors throughout the year. The flowers range in color from yellow‚ salmon‚ pink‚ fuchsia and white or combinations of those colors. • Common name ~ Christmas Cactus • Scientific name ~ Schlumbergera bridesii • Origin ~ A group of epiphytic cacti native
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Effect of Temperature on Solubility of a Salt Ahmed Mohammed 17-nov-2013 Abstract In this experiment‚ you will study the effect of changing temperature on the amount of solutet will dissolve in a given amount of water. In this experiment‚ you will completely dissolve different quantities of potassium nitrate‚ KNO3‚ in the same volume of water at a high temperature. As each solution cools‚ you will monitor temperature using a computer-interfaced Temperature Probe and observe
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