Hot Water Vs Cold Water Essay

Using the data from the first two columns, an x-y scatterplot graph was created. Analyzing the graph, a set of points that formed a linear curve were identified, and the plot of the graph was reduced to these points. This is the initial cooling curve. A second series was then added to the graph, with points that correspond to the interval when t-butyl alcohol was freezing. A trendline was then created for each of the series to obtain the equation of the line and r values.

Background Information In this lab KCl, NaCl, and a mixture of MgCl2 and NaCl are the independent variables that all lower the freezing point of water. Ice is used as the controlled variable because it is what the salts are lowering the freezing point of. Salt (Na) weakens intermolecular forces of water, thus lowering the the freezing point. This is why in colder climates where icy roads and walkways are a liability, salt is often scattered over areas that are slick with frozen water.

Materials: The materials that I will be utilizing during these experimentations are three to four ice cubes, one cup for measuring, six unblemished cups, one stopwatch, one hot water source, three tablets of Alka-Seltzer, one thermometer that measures from negative

When atoms are cold they sink because they are more compacted and don’t move around as much. Sink or Float was a lab that showed about temperature and density changes. With the cold water we saw it sink and just stay at the bottom of the container without moving. When the hot water was added it made it rise to the top of the container and spread. That showed us that the bottom layers would be hotter and the top layers would be colder.

In the next steps the density of water between 30-40 °C, 40-50 °C and 50-60 °C was measured. Then our results ρ vs T and also density vs temperature values given in the Steam Tables were plotted on the same graph in order to compare. In the second part the density of water was measured by density bottle. The densities obtained from the experiment are 995, 992.5, 991, 990 kg/m3 for the first part and

The Effects of Temperatures on Reaction Time of Alka-Seltzer Emily Reynolds October 11, 2015 General Biology Laboratory Northwest Missouri State University Mrs. Heather Meler   INTRODUCTION It has been observed that chemical reactions occur at different rates. But, what causes the rates to change? One of the most effective ways to find the answer to that question is through experiments. It has been learned through experimentation that the concentration of a chemical and the temperature can affect the rate of the reaction (Taylor and Mortimer 2002).

Trial #2 and Trial #3 were used to determine the freezing point of an aqueous solution. The “Unknown C” was used to create the aqueous solution. For Trial #2, 2.0019 grams of “Unknown C” were weighed and dissolved into the 11 dram vial. Once dissolved, the 11 dram vial was submerged into the ice bath, and the Vernier temperature probe was immersed into the 11 dram vial as well. Once the temperature of the aqueous solution reached 10°C, the temperature was recorded every 10 seconds.

The purpose and significance of this experiment was to find the specific heat and figure out an identification of an unknown metal. The specific heat was calculated through a given formula. The unknown metal was found through descriptions that matched the unknown metal. The unknown elements would be one of the following: Al, Bi, Cd, Cu, Fe, Pb, Ni, Na, Sn, or Zn. First the specific heat of water was measured, then heat flow was measured using equations.

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Then the scientist will observe the different rates of reaction with temperature. The Boltzmann distribution of law, indicates that high temperature makes molecules gain high energy contents (pubs.acs.org/doi/abs/10.1021/ja). In order to measure the reaction rate, the scientists must use the same volume of water at three different starting temperatures: hot tap

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Introduction The intent of this experiment is to understand how hot and cold water interact with each other by combining clear hot water and black ice cold water. I hope to learn more about how hot and cold water interact with each other. As of now, I know that cold water is denser than hot water. Knowing this I formed my hypothesis.

Who are the entrepreneurs? What did they do to prepare themselves? Harrison McCain and Wallace Mccain were Canadian businessmen and entrepreneurs, who co-founded a Canadian multinational frozen foods giant called McCain Foods Limited, along with their two brothers Robert and Andrew. Born to the owner of a seed potato exporting business, both brothers had a chance to experience working in a business and later expanding their studies in university.

I know this because I was one of the first ones called to get an ice cube. I went over to a dark, cold corner to put my ice cube in because in a corner there might not be as much air flow so that heat can come in. I tried to find a low place because hot air and heat rises and when air gets cold it sinks lower than the hot air does. Then after everyone put there boxes down, we went back to our classes and waited. When my box was in the room, the three heat transfers were trying to get inside my

When temperature is increased, the amount of obtainable energy increases; meaning that particles will move at faster pace at a higher temperature. Thus rate at which molecules diffuse will progressively speed up as the temperature increases. However if temperature of solution is decreased the rate of osmosis will decrease and rate at which molecules diffuse will be significantly less than that of higher