Hot Water Tank

The aim of the experiment was to find out how changing the mass effects the rise of the temperature of water.

designing an experiment, we have to design an experiment and we need to confirm the

The aim of the experiment will be to investigate how varying water temperatures influence the time of a chemical reaction, in this case being, a combination of Sodium Thiosulfate and Hydrochloric Acid.

After all results have been recorded, pour all of the solutions down the drain, rinse equipment and clean up the

Each student got a white tub and filled it up with tap water from the sink. Students were paired with two or three other people and formed their groups. Each group got 1 stopwatch, 1 thermometer, and also learned how to each other’s pulse. The temperature of the water used from the sink were adjusted beforehand to about 23°C; room temperature. Water temperature was not re-adjusted to be hotter or colder.

The next step in this lab is to rinse the Erlenmeyer flask with distilled water down the drain and then repeat the experiment, this time adding 10 ml of 0.10M KI and 10 ml of distilled water to the flask instead. The flask should again be swirling to allow the solution to succumb to the same temperature as the water bath and once it has reached the same temperature, 10 ml of 3% H2O2 must then be added and a stopper must be immediately placed on the flask and recording should then begin for experiment two. After recording the times, the Erlenmeyer flask must then be rinsed again with distilled water down the drain. After rinsing the flask, the last part of the lab can now be performed. Experiment three is performed the same way, but instead, 20 ml of 0.10 ml M KI and 5 ml of distilled water will be added and after the swirling of the flask, 5 ml of 3% H2O2 will be added. After the times have been recorded, data collection should now be complete.

11. The purpose of placing ht test tubes in a hot water bath is to stimulate the temperature of the human

Abstract: This experiment introduced the student to lab techniques and measurements. It started with measuring length. An example of this would be the length of a nickel, which is 2cm. The next part of the experiment was measuring temperature. I found that water boils around 95ºC at 6600ft. Ice also has a significant effect on the temperature of water from the tap. Ice dropped the temperature about 15ºC. Volumetric measurements were the basis of the 3rd part of the experiment. It was displayed during this experiment that a pipet holds about 4mL and that there are approximately 27 drops/mL from a short stem pipet. Part 4 introduced the student to measuring

Table 1: This table shows the position that the solution was at inside the graduated tube it was held in at each time interval it was measured.

The Effect of Different Temperature Water on Alka-Seltzer Dissolving Time The Effect of Different Temperature Water on Alka-Seltzer Dissolving Time Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Average 30 °C 90.00 sec 97.74 sec 73.63 sec 101.94 sec 70.13 sec 86.72 sec 50°C 50.01 sec 80.59 sec 90.16 sec 87.15 sec 70.81 sec 75.74 sec 70°C 56.65 sec 56.57 sec 56.60 sec 56.80 sec 57.16 sec 56.76 sec 90°C 20.85 sec 27.78 sec 28.78 sec 27.35 sec 29.91 sec 26.95 sec 110°C 25.41 sec 24.03 sec 21.73 sec 22.14 sec 26.17 sec 23.90 sec Figure 1 The data table is showing the relationship between temperature of water and dissolving time of Alka-Seltzers. Alka-Seltzers were placed in 30°, 50°, 70°, 90° and 110° water.

Also I have made a version of the flow of the water at the lab, but believe I am missing pieces in the exact actions happening in the tanks at

The Lab One was done on Laboratory Techniques and Measurements. The first experiment with my Lab partner; we got opportunity to experiment how to conduct measurements in length by using metric conversion. We started in cm units and changed into mm by x10, and moving decimal point x1 to right. To find in meter we moved from cm to meter two decimal points to the left or double check our self divided by 100 and all records in data table 1. The second experiment was to measure temperature of how cold and hot tap water can be by using thermometer in Celsius units. From this experiment, gained knowledge that tab water doesn’t boil to 100 Celsius related to containing different

4. Remelt the contents of the tube and add the counterpart component based on the given schedule. Ask the demonstrator to adjust the cooling water between mixtures. During the experiment, record and plot the data obtained for all mixtures listed. The experiments are stopped as follows:

We prepped for the experiment by turning on the hotplate and giving it time to heat up, putting water into a large beaker, plugging the temperature Probe into the computer, placing the rubber stopper into the Erlenmeyer flask, and connecting the pressure tube into the rubber stopper. Next, we used a ring stand to lower the Erlenmeyer flask into the water

This proposal investigates the possibility of combined use of PCMs and sensible heat to improve the thermal performance of hot water tanks (HWT) hence to shift the peak power demand. And demonstrate a theoretical experiment results about comparison between the proposed system designs and the HWT without combination of PCMs.