Calorimeter Temperature Reaction

1548 Words4 Pages

Introduction The purpose of this experiment was to investigate the relationship between thermal energy and chemical reactions. A calorimeter is a metal container that is insulated for the purpose of conservation during a chemical process. In the calorimeter, a stirring rod and a thermometer place to keep track of the heat changes occurring during the experiment. Calorimetry was used in the experiments to measure the absorbed heat in a chemical process. This method of calorimetric measurement is good for conserving heat due to the energy transference from the liquid placed in the calorimeter to the calorimeter itself. The law of conservation of energy states that the amount of heat lost equals the amount of heat gained in a well insulated environment. …show more content…

The temperature the calorimeter actually went down when the KCl began to dissolve. The calculated specific heat of solution for the KCl solution was 4.19j/gc, the heat of the calorimeter was .8 degrees celsius, and the total heat was 524.84j. After finding the moles of salt in the KCl solution, calculations showed that the molar heat of the solution was -5301.42j/mol. There are many factors that indicate that this reaction is endothermic. The first indicator of this reaction being endothermic was the fact that the final temperature did not stray from the initial temperature. A low constant from the calorimeter can indicate an endothermic reaction as mentioned in the introduction because the calorimeter absorbs heat. There was more heat lost in this experiment than there was cold …show more content…

The calorimeter constant is the base of all math used within this experiment. The constant is needed to calculate temperature change which is needed for the heat change formula. If the calorimeter constant is missing or incorrect, it would throw the entire experiment off. The temperature change is also a very important factor in the experiment because it is need to calculate the heat change. The temperature change can also be an indication of an endothermic or exothermic

Show More
Related

  • Analysis: Joe Science Vs. The Water Heater

    868 Words  | 2 Pages

    Thermodynamics is essentially how heat energy transfers from one substance to another. In “Joe Science vs. the Water Heater,” the temperature of water in a water heater must be found without measuring the water directly from the water heater. This problem was translated to the lab by providing heated water, fish bowl thermometers, styrofoam cups, and all other instruments found in the lab. The thermometer only reaches 45 degrees celsius; therefore, thermodynamic equations need to be applied in order to find the original temperature of the hot water. We also had access to deionized water that was approximately room temperature.

    Read More

  • Specific Heat Lab

    357 Words  | 1 Pages

    The purpose of this lab was to calculate the specific heat of a metal cylinder

    Read More

  • The change in enthalpy for the combustion of magnesium metal

    1121 Words  | 3 Pages

    We began this investigation by suiting up in lab aprons and goggles, we then gathered our materials, found a lab station and got to work. We decided to start with the magnesium in hydrochloric acid first, we measured out 198.5 L of HCl and put it in the foam-cup calorimeter and took initial temperature reading. We then selected a piece of magnesium ribbon and found its mass: 0.01g. This piece was placed in the calorimeter and the lid was shut immediately to prevent heat from escaping. We “swirled” the liquid mixture in the calorimeter to ensure a reaction, and waited for a temperature change. After a few moments, the final temperature was recorded and DT determined.

    Read More

  • Using The Vernier Lab Pro Interface And The Logger Pro Interface

    1180 Words  | 3 Pages

    The data which was collected in Procedure A was able to produce a relatively straight line. Even though this did have few straying points, there was a positive correlation. This lab was able to support Newton’s Law of Heating and Cooling.

    Read More

  • Investigation of the Heat Energy Produced by Combustion of Various Alcohols

    2704 Words  | 6 Pages

    By adding fresh cold water it should cool the copper calorimeter. By making sure I do these checks before I do the experiment means that I should be able to get accurate results as the test will have been run fairly and hopefully successfully as there should not have been anything gone wrong. To make sure all the measurements are correct, I will also run checks. These checks when recording the data are. Make sure to check the thermometer to see what temperature the water is at the start, so I am able to see what it has to be when its been heated by 10 degrees.

    Read More

  • Heat Capacity of An Unknown Metal

    1176 Words  | 3 Pages

    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.

    Read More

  • Determination of the Enthalpy Change of a Reaction

    1680 Words  | 4 Pages

    Specific heat capacity of aqueous solution (taken as water = 4.18 J.g-1.K-1). T = Temperature change (oK). We can thus determine the enthalpy changes of reaction 1 and reaction 2 using the mean (14) of the data obtained. Reaction 1: H = 50 x 4.18 x -2.12.

    Read More

  • Marshmallow's Change In Heat

    415 Words  | 1 Pages

    Tf-Ti). Next, subtract the initial temperature, 25 degrees from the final temperature, 29 degrees putting the change in temperature at 4 °C. To calculate the heat absorbed by the water in calorimeter, use the formula (q = mCΔT). Plug in 50 mL for (m), 4.184 J for (C) and 4 °C for the initial temperature (ΔT), then multiply.

    Read More

  • Lab Experiment: Calorimetry And Specific Heat

    1312 Words  | 3 Pages

    Measure and record the temperature of the water in the Styrofoam cup. Leave cardboard cover on until the heated metal is ready to be transferred into the calorimeter.

    Read More

  • Chemistry: Magnesium Hydroxide And Citric Acid

    984 Words  | 2 Pages

    In this lab, I determined the amount of heat exchanged in four different chemical reactions only using two different compounds and water. The two compounds used were Magnesium Hydroxide and Citric Acid. Both compounds were in there solid states in powder form. Magnesium Hydroxide was mixed with water and the change in heat was measured using a thermometer. The next reaction combined citric acid and magnesium hydroxide in water. The change in heat was measured as well. For the third reaction citric acid was placed in water to measure the change in heat. In the last reaction, citric acid was combined with water. The heat exchanged was again measured. It is obvious we were studying the calorimetry of each reaction. We used a calorimeter

    Read More

  • The rate at which Alka-Seltzer tablets reacts with water

    3766 Words  | 8 Pages

    Input variables In this experiment there are two main factors that can affect the rate of the reaction. These key factors can change the rate of the reaction by either increasing it or decreasing it. These were considered and controlled so that they did not disrupt the success of the experiment. Temperature-

    Read More

  • AMMONIUM NITRATE

    560 Words  | 2 Pages

    -     Temperature was measured after and exact time i.e. 1 minute, 2 minutes, 3 minutes.

    Read More

  • The link between the number of carbon atoms in a fuel with the amount of energy it releases

    2717 Words  | 6 Pages

    This is expressed as Δ +ve (delta positive). If the total energy put in is less than the energy created, then the substance warms up (it is exothermic). This is expressed as Δ -ve (delta negative). I will investigate eight different alcohols using an alcohol or spirit burner, to measure the energy change during burning by measuring the change in temperature of some water held in a container.

    Read More

  • Phase Change Lab Report

    704 Words  | 2 Pages

    Methodology: A plastic cup was filled half way with crushed ice and mixed with four spoonfuls of 5 mL of sodium chloride. A thermometer was quickly placed inside the cup to take the temperature and the

    Read More

  • Essay On Thermoster

    1011 Words  | 3 Pages

    Thermostats are a usual method of sensing a temperature of a system and maintain the system’s temperature at a predefined point. The most popular and ubiquitous appliance in any home is a Refrigerator. A thermostat maintains the pre-set value of temperature by switching the heat conduction. In short, it regulates the heat flow. In Physics, there is no such thing as cold, its either higher temperature or lower temperature – heat flow (absorption or dissipation). Thermostats are a regular feature in Air Conditioner, Microwave Ovens, Ironing machines, Induction Heaters and Refrigerators in home appliances category. At the same time in many scientific labs (biology, physics or chemistry research domains) storing experimental samples (veils, substrates, materials etc.) these above appliance have a larger role to play. Most of these laboratory experiments run for weeks and such appliances run almost 24x7. Maintaining the pre-set temperatures are an integral part in such labs.

    Read More

More about Calorimeter Temperature Reaction

Open Document