Thermal Conductivity

In this experiment, the results of the tested materials gave off heat and the change in the temperature was positive because when one substance was added to another the temperature increased. A calorimetric constant is required because the calorimeter that was made is different for every lab group.

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

Heat is a form of energy, sometimes called thermal energy, which can pass spontaneously from an object at a high temperature to an object at a lower temperature. If the two objects are in contact, they will, given sufficient time, both reach the same temperature. Heat always travels from hot to cold objects and two objects will reach an equilibrium temperature. Heat flow is commonly measured in a device called a calorimeter, an insulating container that minimizes heat exchange between its contents and the surrounding. Heat flow in a device called a calorimeter. In this experiment, we should find the heat capacity of the

Copper is used in various industries including: Building Industry – 47%, Transportation – 10%, Consumer Products – 11%, Electronic Products – 23% and Industrial Machines – 9%. Copper is an extremely good conductor, which is why it is produced and used in forms of copper wire, cabling, generators, motors and various other appliances. Copper’s resistance to corrosion means it can be used in areas containing moisture such as water piping and tanks, plumbing, and also in hot water systems which is effective due to its suitable heat conduction. It is easy to form shapes such as pipes with copper due to its malleability. Copper also has the ability to lose heat very quickly, which makes it an effective element to be used in air conditioning and heat exchangers.

In this science unit we had to keep 200 milliliters of boiling water hot as warm as possible for 20 minutes. For trial one we put tin foil all around flask so the heat waves would reflect back to the flask. Also we put tin foil on the top of the flask to stop convection because warm rises. So when the hot air rises we wanted the tin foil to reflect the hot air back into the flask. Then we were going to put the flask in in a wooden box with a small volume, but then keegan forgot to bring in the box so we had to put the flask with the tin foil around it in our ELA project.Then we put a ton of cotton balls all around the flask and tin foil to insulate the water in the flask. At the end of trial 1 we lost 15.7℃. One thing we did well is we kept the heat in by insulating with cotton balls. Another thing we did well was stopping convection by putting tin foil on the top.

There are four basic components for thermal energy (heat): 1. All matter is made up of tiny particles called atoms. These can only be seen with special microscopes. 2. The atoms are always moving – they all have kinetic energy. 3. The particles have space between them. Different states of matter have different amounts of space. 4. Adding heat (energy) to matter makes the particles move more quickly. Since faster moving things have more kinetic energy, adding heat increases the energy of the particle. 5. Cooling it down decreases the amount of kinetic energy and slows the movement down.

In an article called “Heat Transfer by conduction” by Mike Brown, it states “Thermal energy in the vibrating particles or molecules is passed on to nearby particles in a process called conduction”. This explains to us the process of conduction in which it relates to our design because when we insert the thermometer into the warm water, our goal is to keep the water warm with our cup so that once the thermometer makes DIRECT contact with the warm water, it will heat up the thermometer and give us an exact temperature.

Part 1: After reading the various information given, I gathered different objects and measured them using both centimeters and millimeters then converted them to meters. Next, I recorded the temperature of hot tap water and boiling water as

This experiment was dealing with the heating of water with different types and sizes of metals. In it you had to deal with heat capacity. Heat capacity is the amount of heat (normally expressed in calories, kilocalories, or joules) to raise a substances temperature by one (1) degree (normally expressed in Celsius or Kelvin). With the answer expressed in units of thermal energy per degree temperature. With substances having certain specific dimensions you can use to types of heat capacity, Molar Heat Capacity and Specific Heat Capacity.

Background: Calorimetry is the science of measuring the heat of chemical reactions or physical changes. Calorimetry is performed with a calorimeter. A calorimeter can be any container from a cup to a Calorimeters need to be well insulated as calorimetry relies on the fact that temperature change only occurs within the solution and that no heat escapes to the surroundings. That is why it is important that calorimeters are well insulated. However, heat loss cannot be avoided so scientists, when conducting experiments, need to choose the calorimeter that allows least heat energy to escape, therefore, retaining as much heat within the solution

The black, silver and white cans all started with an interior temperature of 80°C but concluded with interior temperatures of 40°C, 33°C and 32°C respectively. At any given point in the experiment you could view the results and have them reflect the final result, there was no great fluctuation in the heat transfer, it remained consistent throughout the

It is where heat is transmitted to a material which is generally a metal as they are good conductors while gases and non-metals are generally

Heat energy (or just heat) is a form of energy which transfers among particles in a substance (or system) by means of kinetic energy of those particles. Heat energy can be transferred by four different methods such as conduction, radiation, convection, and latent heat transfer. In conduction, the heat spreads through a substance when faster atoms and molecules collide with neighboring slower ones and it transfers some of their kinetic energy to them. A great example of conduction is when you can warm your back muscles with a heating pad. Radiation is the process where heat emanates from an object that

A good conductor of heat would be metal, because electrons are free to bounce around and move very fast, while non-metals such as fibers, spun glass and other dense material restricts the free flow of electrons, making them slow.

To achieve this, the final value from each thermocouple was set to be equal to the warm water bath temperature (370C), and the initial reading was set equal to the ice water bath temperature. Thus, for each thermocouple an equation was obtained using the two points to convert voltage readings to temperature. An example of the calibration for one of the thermocouples is shown in Appendix II.