Physics investigation proposal form Name: May Nakayama The Research Question How does the mass of ice affect the temperature of the final temperature of the iced latte? (17) Justification for the Question It is said that it would cost about 1.26cents for electricity to make 1kg of ice for commercial ice makers and for smaller scale production the costs may be higher (Allain). If the production is higher, the more expensive the iced latte will be for students in YIS. During the summer season, Ice
metal by determining its specific heat capacity. We began by choosing a sample of metal, finding its mass, and describing it. We found the temperature of our boiling water. Then, we calculated the volume and temperature of the water in our calorimeter before and after the experiment. Through these calculations, we determined that the heat transferred to the calorimeter water from the hot metal was 595.65J (6.0x10²J with proper significant figures). After finding the heat transferred, we were able
Apurva Puli 2/6/17 Lab Report Honors Physics Calorimetry Lab Purpose: To calculate the specific heat of a substance through the use of a calorimeter To use equations to determine the heat of reaction To calculate the heat of neutralization Procedure: Part A: Obtain all materials Fill a large beaker with water, enough to fill about ⅔ of the beaker Make sure to set up the bunsen burner and stand appropriately Ensure that the materials are balanced Place a thermometer in the beaker of water Obtain
burning marshmallow, then through the process of calorimetry the energy content of the marshmallow should be 5.0kJ/g (the value provided by the United States Department of Agriculture). Reactions that give off heat as a product are known as exothermic reactions, whereas reactions that absorb heat are known as endothermic reactions (Van Hecke, 1999). An example of an exothermic reaction would be condensation, in which water loses energy, and an example of an endothermic reaction would be melting, in which
The system transfers heat to the surroundings and as a result, its temperature is decreasing. The surrounding (room temperature water) accepts the heat from the system, and thus, its temperature increases. The specific capacity of the calorimeter is calculated using msystem Cp ΔTsystem + Ccal ΔTcal = 0 (Eq.5). In the second part, the calculated capacity of the calorimeter from the first part is used so as to determine the specific capacity of an unknown metal. The metal is
This lab’s problem asked how the heat capacity of a lead sinker can be determined (Bridges 192). The hypothesis stated for the first experiment that if the lead sinker is heated in boiling water, placed in a calorimeter, and tracked consistently for the temperature, then the heat capacity of the lead sinker can be calculated because with the mass of the lead sinker, the original volume and mass of the water, and before and after temperature checks of the water, the data collected can be used with
different uses. It can be used to heat homes, cook food, and generate electricity. Thermal energy, however, is not the same as heat. Heat is energy transferred between substances or systems due to a temperature difference between them. Therefore it is correct to say that a system contains thermal energy, but it is incorrect to say that it "contains" heat. This is because heat refers to energy that is transferred from one thing to another. The quantity of heat transferred by a substance is reliant
one object to the other. However, a perfect thermos would prevent any heat from leaking out or in. Energy in the form of heat can flow between materials inside the thermos to the extent that they have different temperatures; for example, between ice cubes and warm coffee. The transfer of energy continues until a common temperature is reached at thermal equilibrium (Cutnell 2014). Thermal equilibrium occurs when there is no heat flow between two materials, making them essentially the same temperature
friction between the piston and the cylinder wall, determine the heat transfer to the air, in kJ. First Law- Additional Exercises: Problem 13: A system executes a quasi-static process from an initial state 1 to a final state 2, absorbing 80 kJ of heat and expanding from 2.0 m3 to 2.25 m3 against a constant pressure of 1.5 bar. The system is brought back to its initial state by a non-quasi-static process, during which it rejects 100 kJ of heat. What is the work done during the second process? Problem
calorimeter, which is a device scientists use to determine the amount of heat produced by a process (or change). Processes that absorb energy are endothermic and processes that release energy are exothermic. Endothermic, processes that absorbed energy produced positive results. Where as, exothermic, processes that release energy produced negative results. This experiment also dealt with specific heat. Specific heat is the amount of heat gained or lost when one gram of a substance changes temperature by