As heat is a form of thermal energy, they tend to have the behavior of reaching a thermal equilibrium. This means that when two bodies of different temperatures come in contact with each other, the hotter ones will transfer heat particles to the body with a colder temperature, with an aim to reach this “thermal equilibrium”, whatever the temperature may be.
The larger the surface area, means there can be more “paths” from the sides of the body that are capable of releasing this heat particles, and reaching thermal equilibrium faster. This is what happens when a hotter body is subjected to a colder one. Research Question: How does the surface area to volume ratio affect heat loss in organisms? Hypothesis: I hypothesize that the larger the surface area to volume ratio, the more heat will be lost and vice versa. In this experiment, there will be a series of sizes of round bottom flasks, each having a different surface area to volume ratio.
The smallest round bottom flask will have the biggest surface area to volume ratio, therefore the heat loss in that particular flask will be most, whereas the biggest flask will have the least surface area to volume ratio, therefore heat loss will be the least. The reason behind the difference in rate of heat loss can be explained by the fact that the surface area to volume ratio indicates the surface area, a particular unit volume has. This, in other words, states that in comparison to the content, the surface in contact with the outside is comparatively greater.
The Essay on Surface Area To Volume Ratio And The Relation To The Rate Of Diffusion
Aim and Background This is an experiment to examine how the Surface Area / Volume Ratio affects the rate of diffusion and how this relates to the size and shape of living organisms. The surface area to volume ratio in living organisms is very important. Nutrients and oxygen need to diffuse through the cell membrane and into the cells. Most cells are no longer than 1mm in diameter because small ...
Therefore, this can also be interpreted in a way to explain the rate of heat loss. Since more particles of water are able to contact the outer atmosphere, more heat is lost simultaneously, which results in a faster heat loss. Variables: Independent: Surface area to volume ratio On the basis of this experiment, this is the independent variable because the experiment desires to see the impact of the change of this variable to the heat loss. We change this variable by using different sizes of round bottom flasks. We’ve used four different surface area to volume ratio to observe the change in heat loss.
Controlled: Initial temperature, type of insulation, type of flasks, room temperature, time. 1. We’ve decided 77? C as our initial temperature for every trial. We’ve kept the initial temperature equal for each trial as this would give us fair and reliable results. If the initial temperatures were kept different, therefore the data provided will be somewhat unreliable. This is also because as the temperatures are higher, the rate of heat loss would be faster, as compared to when the initial temperatures are lower. This would again support the unreliability of the data we would observe. . The type of insulation that we’ve chosen is the cotton, approximately with the same thickness for each flask.
They will be changed for every trial, because for each trial, as the heat escapes from the sides of the flask in the form of water vapor, it comes in contact with the cotton, thus making it moist, and changes the capacity of the cotton to insulate. We have decided to use only cotton as the medium of insulation, as if we use different types of insulation, the different heat conductivity of each type of insulation will affect the data obtained, and making the data unreliable.
For example, the smaller flask would have less, or the same rate of heat loss as compared to the bigger flask, provided the insulation given to the smaller flask is more conductive. 3. We’ve chosen to keep the same type of flasks for each trial for the experiment, and we’ve chosen the round bottom flasks. We have decided to keep this same, because if we use different flasks for different trials, the results obtained will be inaccurate as the surface area to volume ratio would not be same, and we cannot take the volume as “unit”, because the type of flasks are different. . We are conducting the experiment in all the same place therefore keeping the room temperature equal. Since this experiment is a very long experiment, and given many days to do, if we decide to conduct these experiments in different places, therefore the different room (surrounding) temperature would affect the rate of heat loss. For example, if we choose to do the experiment in a room with room temperature 20? C, and in a room with 30? C, the room with 30? C would have the results of all the flasks, with less rate of heat loss as compared to the room with 20? C. 5.
The Essay on The effect o temperature on a Reaction time
Abstract: This project looks at how the temperature of an experiment can affect its reaction time. The purpose of this experiment is to determine if dissolving reactions are affected by waters temperature. I believe that if the H2O temperature increases, then the Alka-Seltzer tablet will dissolve faster because the hot water molecules will move faster colliding with the tablet particles. Water ...
The trials of the different flasks will be done simultaneously, so that the temperature and surrounding conditions would be as similar as possible. We’ve set the time of each experiment for as long as 3 minutes for each trial. The data will be collected in an interval of every 10 seconds. The time is kept as 3 minutes (180 seconds) only, because if the time a trial is not same for every other trial, the average rate of heat loss would be different.
This will increase the rate of heat loss, thus decreasing the overall temperature of the water body. Evaluation: We have tried to maintain the accuracy and reliability of this experiment as maximum as we can. But there are some restrictions to this, which causes the experiment to not be as accurate as we hoped it to be. Starting from the first restriction, being the thickness of the insulation, this cannot be exactly the same for all the 4 flasks, therefore the heat loss would be affected.
Furthermore, the fact that these are just bodies of water, and not real organisms (which could also produce some heat themselves), would make the data not quite the one we desired, as the decrease of temperature would be much bigger than that of a real organism. This would prove to be hard to solve, as the usage of real animals would be unethical. Another main problem that usually happens in many of the experiments is that the initial temperature cannot be exactly the same. The fact that the devices had to be started manually, this again decreases the reliability of the experiment.
The Term Paper on Hydrochloric Acid Reaction Temperature Experiment
Aim: Investigate what affects different temperatures of hydrochloric acid have on calcium carbonate. Background Information: For a reaction to take place, collisions must occur between the particles. If the collisions occur more frequently then the rate of reaction will increase. The rates of reactions can be altered in many ways. The variables are: The size of the particles of a solid reactant ...
This is also because the device can only stop after the desired time, but never start at the desired temperature. If there was a device which could start at a series of desired temperature, this unreliability would then be prevented. Although some negligible values (+0. 2? C or -0. 2? C) are neglected, this would still give some error and makes the data more unreliable, as it brings the results further than the basic aim of the experiment , which requires a certain and exact initial temperature.
