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Traditional experimental methods
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The experiment objectives is to find out the power required to keep the coffee hot after it has been made and the energy required to keep the coffee hot for a certain period of time by recording the rate of heat loss as the coffee cools down. Coffee filter machine is simple machine that makes brewing coffee easier for everyone. The working of the coffee filter machine is a very simple machine compared to another electrical appliance. The coffee filter machine consists of six parts: 1. The reservoir for holding the water. 2. The basic heating element. 3. The aluminium tube connected from the water reservoir to the heating element. 4. The shower head or the drip area 5. The one way valve. 6. Another tube connected the reservoir to the shower head or the drip area. In the heating element, it …show more content…
The boiling water causes the water bubbles to rises up in to the aluminium tube allowing some water to move upwards on the boiling bubbles. 4. The boiling water flows into the shower head or the drip area to open out and drip on the coffee powders. 5. Hot water flows through the coffee powder and become coffee. Method of data collection The equipment that was used in the experiment was: 1. Coffee Filter Machine 2. 4,6,8,10,12 cups of water 3. Stopwatch 4. Thermocouple and temperature data logger 5. Mass balance The procedure: 1. The number of cups was selected and the mass were measured by measuring the mass of the cup and the mass of the cup and water. Then, the mass of the cup and the water minus the mass of the cup. 2. The water was poured into the water reservoir. 3. The coffee machine was switched on. 4. Once the coffee was made, the jug was removed from the coffee machine and placed on the table. 5. The temperature of the coffee was immediately taken with the interval of 2 minute over period of 30 minute. 6. The collected data were made into table and plotted into a graph of Temperature vs Time. 7. The gradient, ∆T/∆t was determined assuming the relationship
Two equations were used in this experiment to determine the initial temperature of the hot water. The first equation
The thermometer, containers, and iron ball were secured of any possible contaminants. The stopwatch was calibrated and checked to be correctly measuring the time in seconds and milliseconds, by comparison with other stopwatches. The thermometer was checked to be accurately measuring the temperature of lukewarm water, and was al...
Over the observed fifty seconds, there was a consistency among the temperatures. Without a calculated percent error, we are able to assume the average temperature was twenty-six degrees Celsius. There are factors that could have caused error to arise in our data collection. One factor could be that the temperature of the room was not consistent throughout the room. Another factor may have been the performance of the thermometer. The grasp in which the thermometer was held for procedure B may also be a factor.
Variables --------- During the experiments, the water will be heated using different spirit burners containing different alcohols. I will be able to change different parts of the experiment. These are the. Volume of water heated:
A hot plate is acquired and plugged in and if left to warm up. Fill two beakers with 0.075kg of water and record the temperature using a thermometer and record it. Place one of the beakers onto the hot plate and drop one of the metal objects in. Wait for the water to boil and wait two minutes. Take the object out of the water and drop it into the other beaker. Take the temperature of the beaker and record the rise in temperature.
The coffee pot was made to make coffee easier to make with a metal sieve to catch all the coffee grounds. The inventor of the coffee pot was Benjamin Thompson who was also a lieutenant for the loyalist during the American Revolution. The coffee pot was made in 1806. It worked by sieving out coffee grounds from the coffee so there wasn't grounds in the coffee when poured.
Repeat using the SAME metal sample, but instead with the colder water. Do not record the temperature of the cold water in the calorimeter until immediately before adding the heated metal.
The purpose of the lab was to show the effect of temperature on the rate of
The bottom of the capillary tube and the thermometer were submerged in a beaker of heating water. The water was stirred occasionally and heated very quickly. However, when the water reached 80 ˚C it was heated very slowly in order to not pass the melting point. 3. The temperature when alum melted was recorded in the data table.
The purpose of this experiment is to try to find the original temperature of the hot water in the heater using the 60 degrees C thermometer. Use your 60°C thermometer, and any materials available in your laboratory, to determine the temperature of the water in the coffee pot. During this experiment we calculated the original temperature of a heater after it had been cooled down, and we did this by measuring hot, cold, and warm water, with a thermometer that had tape covering 60 degrees and up. When preformed each of these experiments with each temperature of water, plugging them into the equation (Delta)(Ti – hot – Tf) T Hot x Cp x Mass(Cold) = (Delta)(Tf – Ti – Cold) T Cold x Cp x Mass(Hot)(d
- Temperature was measured after and exact time i.e. 1 minute, 2 minutes, 3 minutes.
To Determine The Effect Of Temperature On Mass Of Butter Formed When Heavy Cream Is Shaken.
During the experiment I will be taking a number of measurements, I will firstly take the initial temperature of the water and initial mass of the alcohol I will then burn the alcohol until an increase in temperature of 20oc has occurred in the water I will then reweigh the alcohol.
A warm water was prepared by heating approximately 100mL of distilled water in a 400mL beaker along with few boiling chips to 45-50 ℃.
There are many health benefits that come from drinking coffee. Coffee can overall make you a happier person. Drinking coffee can make a positive impact on your life. Does coffee really stunt your Growth? How does drinking coffee help in your day to day life? Coffee is loaded with antioxidants and beneficial nutrients that can improve your health. Studies show that coffee drinkers have a much lower risk of several serious diseases.