Specific heat capacity of metals peter jeschofnig, ph. Specific heat capacity laboratory report 1065 words. This report describes the apparatus used to measure specific heat capacity and the. Latent heat 2 liquidgas, concerns the latent heat of vaporization denoted l v. An adiabatic calorimeter is an apparatus used to measure heat changes for experiments done at constant pressure. Specific heat capacity data for a wide range of elements are used to assess the accuracy and limitations of the dulongpetit law.
The specific heat of a metal bainbridge island school. The mass, ms, of the metal was found using the balance and was recorded. Pdf the design and construction of apparatus to measure the specific heat. At that time, it was found that the specific heat at constant volume cv of a substance is defined to be its heat capacity per unit mass when all changes are made at a fixed volume.
Since the heat capacity of a given mass of liquid can be written as c. View lab report module 4 lab report specific heat capacity. Specific heat capacity and latent heat experiments in physics. You can use a water calorimeter to determine how much heat energy, q, is transferred from the object to. From the definition of the calorie given, it can be seen that the specific heat of water is 1 o o. Calorimetry, heat of reaction specific heat is an intensive property of a single phase solid, liquid or gas sample that describes how the temperature of the sample changes as it either absorbs or loses heat energy. Using the table above, match your specific heat to that of one of the metals. A calorimeter is a wellinsulated container used in measuring energy changes. In this experiment, you will determine the specific heat capacities of two different unknown. T, its mass m, and an intrinsic characteristic of the material forming the body called specific.
List the symbol and at least two units for specific heat. If no heat escapes from or enters the calorimeter from outside, we need only to measure t initial, mix the reactants, and then measure t final. Record the combined weight of the cup, stirrer, water, and metal sample as m2 on your data sheet. The corresponding amount of energy lost by the water is given by q w m w c w t eff, where c w is the specific heat of water and t eff. This example, like the diatomic case, illustrates the shortcomings of classical kinetic theory and the need for statistical mechanics and quantum theory. Addison january 22, 2001 introduction in this section we will explore the relationships between heat capacities and speci. Therefore, if heat, q, leads to a temperature change, \\delta t \, of an amount of mass, m, the specific heat. Specific heat capacity gs104 lab report experiment 7. As equation 94 indicates, q the amount of heat absorbed or evolved is proportional to t. Specific heat is the amount of energy, measured in joules, needed to raise the temperature of one gram of the substance one celsius degree. The amount of energy that must be transferred to an object per unit mass of the object to raise its temperature by 1ec is called the specific heat capacity of the object. The fireproof balloon demonstration teachers guide ed senkbeil chemical concepts addressed the fireproof balloon demonstration emphasizes the relatively high heat capacity and specific heat of water as compared to those of air.
View lab report specific heat capacity from gs 104 at riverside city college. While the water is heating, determine and record the mass of a clean, dry 50ml beaker to the nearest 0. Experiment 9 specific heat capacities of metals chem21labs. Introduction the amount of heat required to raise the temperature of a solid body depends on its change in temperature. Often applied to metallic elements, specific heat can be used as a basis for comparing how different substances absorb and transfer energy. To measure specific heat in the laboratory a calorimeter of some kind must be used. The specific heat capacity of unknown metal page 1 purpose you will gain an understanding of the terms heat, heat capacity, and specific heat capacity. Specific heat capacity of water lab report design research question. For doing this, the temperature changes will be measured during certain periods of time. Heat is transferred when there is a temperature unbalance, in this experiment it is a hot metal cylinder at 100c being submerged in water that is at room temperature. The specific heat capacity of a material is the amount of energy per needed to raise the temperature of 1kg of mass by 1 kelvin. The purpose of this lab experiment is to measure the specific heat capacity of unknown metal samples and also to determine the latent heat of fusion of water. The relationship between heat and temperature changed is usually expected in the form shown.
Phys 1401 general physics i experiment 12 specific. Pdf measurement of the specific heat capacity of the electron. The law of heat exchange states that in a confined system, when thermal equilibrium has been reached, the heat lost. Materials and equipment two styrofoam cups, hot plate. Version 4202770001 lab report assistant this document is not meant to be a substitute for a formal laboratory report. Define specific heat, water equivalent and heat capacity of a body.
This value compares well with the specific heat of copper 0. In this lab, we learned that the amount of heat required to change the temperature of an. As a result the temperature of the cooler object will increase. Sph3u101 physics lab report specific heat capacity of brass jin jin shi 2012126 instructor.
Heat capacity the heat capacity of an object is the energy transfer by heating per unit temperature change. The moles of water produced in the neutralization are calculated using the volume and. The heat capacity c of a body is the amount of heat required to raise its temperature by one kelvin degree. To raise the temperature of a body from a given initial temperature t 1 to a final temperature t 2 requires a total quantity of heat which depends on the mass of the body, the specific heat of the material of which the body is composed, and the temperature difference. In addition, we will study the effectiveness of different calorimeters. The purpose of this experiment was to determine the heat capacity of an adiabatic calorimeter. Students perform the activity on the computer where they heat up different substances and then record data on their heat capacity computer lab paper.
Ninth grade lesson specific heat virtual labs betterlesson. In a separate experiment, the specific heat capacity of a particular graphite. The specific heat capacity of a substance is the amount of energy required to raise the temperature of 1 kg of the substance by 1c. The specific heat of an unknown metal was determined using calorimetry. The objective of the experiment is to find out the specific heat capacity of water by monitoring change in. The fireproof balloon demonstration purdue university. The tube was inverted 30 times and the temperature of the air inside the tube and the shot was measured. Water placed inside a balloon will absorb the heat from a candle flame preventing the balloon from popping. Your lab report for this experiment should contain. Using equation 4, calculate the metals specific heat, cmetal, given that the specific heat of the. The specific heat capacity of a particular graphite sample is determined to be 706. Then, use your experimental values and the specific heat capacity for water 4. The specific heat capacity of a solid or liquid is defined as the quantity of heat required to change the temperature of a unit mass of a substance through a unit change in temperature. A piece of silver of mass 362 g has a heat capacity of 85.
The length of the tube was measured and an average distance of the falling show was found to be 90cm. The specific heat of a substance is a measure of the amount of heat energy needed to raise the temperature of a unit mass of the substance by \ 1 oc \. P calorimetry 25 lab report chem 112 general chemistry. Specific heat capacity laboratory report william arndt 23rd may 2016 abstract the specific heat capacity of the two unknown metals were determined by measuring the transfer of heat from the metal to water, through the use of a calorimeter. The specific heat capacity c p of liquid water at room temperature and pressure is approximately 4. Lab 9 specific heat capacity of a solid andrews university. An introductory knowledge of statistical thermodynamics including the derivation of the vibrational harmonic oscillator contributions to the heat capacity are recommended. Neatly written copy of your experimental data sheet. Ken orourke, wendy, carrie lab report estimation of atomic mass from specific heat data data part i determination of heat capacity of calorimeter trial 1 ml trial 2 ml volume of cold water. The final result will there fore be the specific heat of the metal element, in g j c. To determine a specific heat capacity, c, solve the equation q mc. Specific heat values for various other materials are listed in table 1 below. List the three methods of heat transfer and one example of each.
The specific heat capacity of water and metal lab report. Heat 250 ml of water in a 400ml beaker until it is boiling gently. Our result from this experiment was somewhat close to the specific heat capacity for water. The aim of this experiment is to find the specific heat capacity of tab water. Determination of specific heat of certain materials can be carried out in a simple setting in which only heating and measuring temperature are the only tasks involved on the assumption that the value of the heat or energy used is derived from a power input typically in watts or js. When there is no phase change, the heat lost or gained by an object can be calculated with the formula. Calculation of specific heat capacity and determination of the identity of the metal. T, m is the mass of the shot and, g is of course gravity. Heat losses during the transfer of the hot metal to the. The investigation of the heat capacity of solids is important in the study of condensed matter. Heat capacity c is the heat energy required to raise the temperature of a body by. Since kelvin and celsius degrees are equivalent the units are. Also known as heat capacity, the specific heat is the amount of the heat per unit mass required to raise the temperature by one degree celsius. Specific heat capacity laboratory report 1065 words bartleby.
Phys 1401 general physics i experiment 12 specific heat i. To measure the specific heat capacity of two different metals. Use units to set up your calculation, and label what you are calculating. The purpose of this experiment is to identify two unknown metal samples. Calculation of specific heat capacity and determination. Describe a practical that can be used to determine the specific heat capacity of a material. To find the specific heat capacity of a metal using the method of mixtures. The specific heat of a substance, usually indicated by the symbol c, is the amount of thermal energy required to raise the temperature of one gram of the substance by 1oc or 1k. Therefore, if heat, q, leads to a temperature change, \\delta t \, of an amount of mass, m, the specific heat, c, is. Specific heat of a solid and determination of cpcv of gases. The specific heat at a constant pressure, cp is defined as the heat capacity per unit mass when all changes are make fro a fixed volume.
Determination of specific heat capacity of copper introduction. Calorimetry, thermal physics from alevel physics tutors. The specific heat of the unknown metal will be used to estimate its atomic mass. Introduction the porpoise of these is to determine the specific heat. Introduction the objective of this experiment is to measure the speci. Show all calculations you need to do to determine the specific heat capacity. While the water is heating, determine and record the mass of. For the experiment to explore the specific heat capacity of water, we need. Heat capacity 29 celsius and the specific heat capacities in calories per gram per degree celsius, the block of substance has thus given mctb t2 calories of heat to the calorimeter and the contained water.
I like this activity because it is very quick and simple but allows students to see how much energy is put into the system, how much the temperature changes, and the mass of the substance. This will be done by mixing two different substances and measuring their initial temperatures and then measuring their. Q in j is calculated based on equation 1, using the specific heat of water, 4. The quantity of heat liberated or absorbed when the temperature of 1. The specific heat c of a material is defined to be the amount of energy. Pdf measurement of the specific heat capacity of the. The specific heat c of a material is defined to be the amount of energy needed to raise the temperature of 1 kilogram of the material by one degree celsius or kelvin. You will use a simple styrofoamcup calorimeter to measure the specific heat capacity of an unknown metal in order to identify that metal and confirm the law of dulong and petit. Calculate the mass of the metal sample by subtraction. The heat capacity of the calorimeter, c cal, is determined in part i of the procedure. Specific heat capacity experiment examples, solutions. For example, the specific heat capacity of water is 4.
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