Using The Heat Energy Equation

The dependent variable in the experiment was the temperature and energy absorbed by the water.

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.

The calorimeter was covered as quickly as possible with the cardboard and the thermometer was placed through the cardboard 's hole at the proper height. A stopwatch was used for recording the temperature inside the calorimeter every minute until five data points where temperature is constant or decreasing were observed. Since, this calorimeter did not provide a automatic stirrer, it was essential to be swirled during this process to ensure proper mixing. This procedure was repeated twice more to determine three Ccal

Use your results in Data Tables 1 and 2 and the information provided in the Background section to calculate the amount of heat produced per gram (in Calories/gram) for each food and record this value for each food type.

Aim: To plan, conduct, evaluate and report on an investigation of chemical changes, and make recommendations for their use as an energy source in Heat-and-Eat meal packs.

The purpose of this experiment is to conduct what happens to gummy bears when we put them into different liquids. When we were done we gathered data and saw that the gummy bears ended up with different textures and sizes. There were only some minor differences. For water after a day, the length changed, the width, height, and mass. For salt water only the mass changed, before it was 2.6 and after it was 1.5 grams. The next liquid is sugar water, and for that liquid all the of the data changed. The length was 3 cm before, after it was 3.5 cm. The width of the gummy bear was 3 cm before, after it was 1 cm, and after it was 1.5 The height was 2 cm, and changed to 1 cm. Lastly is the mass, it was 2.6 and the after it changed to 5.1. The

According to the data table, the Marshmallow was the heaviest while the Chex-Mix was the lightest. Also, the Cheetos trial produced the highest water temperature. During the trial process, four CHEEZ-IT’s broke when attempting to place the CHEEZ-IT on the paper clip. Also, during the first Cheetos trial the Cheetos did not burn entirely, so a second trial was done and the sample burned completely. The Chex-Mix burned the fastest while the Marshmallow burned the slowest. Several samples we’re slightly difficult to light with the match, also putting some of the samples onto the paper clip was troublesome. An environmental factor that affected the experiment was the excess CO2 in the air because all the lab groups were burning the snack foods

The purpose of this experiment was to see if brownies could taste the same, appear the same, and have the same texture if you didn’t use the key ingredients to brownies. The key ingredients to brownies are eggs, water, and oil. The brownies were also cooked at a different temperature, to see if the brownies would cook the same. There were three different test tasters, they predicted different things and said different things about the brownies.

How does someone determine the amount of calories in a single cheese puff? The problem is designing and conducting an experiment to answer this question. In this experiment, two Cheetos were individually burned under an Erlenmeyer flask filled with 25 mL of water. The temperature of the water before and after it was heated was measured with a thermometer and then recorded. Using the masses of the 2 cheese puffs, the specific heat capacity of H2O, and the changes in temperature of the water - the number of calories in each of the Cheetos was

The behaviourism approach is good as there are lots of experiments to support the theory, it also makes a lot of sense as it says you learn from behaviour and the response you get to that behaviour, Tony learnt that if he fought with someone then his father would most likely be proud of him and so grew up learning that fighting was something to be proud of. It’s also a good approach as it explains impulsive actions in people, it describes us as acting first before we think about the consequence. Tony’s case it very much explains how he acts on impulse. It’s a good approach as it is easy to see how someone is acting due to what they’ve learnt growing up, you can see this in simple things like people having the same traits as their parents or people they spend a lot of time with, for example Tony must have a lot of violent traits learnt from his father. The approach is weak when it comes to biology though, as it doesn’t look into the biological explanation of someone’s actions, it doesn’t look at the thought processes or the hormones present in a person when they’re reacting.

In this lab the temperature of the water is the dependent variable because it is dependent of the burning of the chip, while the calorimeter is the independent variable because we can change the structure of the calorimeter we built. Literature Review “Kinetic energy is the energy of the mass in motion”(Lucas). Kinetic energy can be found with the equation ½mv^2. Potential energy is energy that has the potential to be moving but is neutral. A

We will be using 6 different fuels to heat up 100ml of water, and find out the changes of the temperature. We will measure the temperatures of the water before and after the experiment. We will burn heat the water for exactly 2 minutes, and check the changes in temperature. The change in temperature will allow us to work out the energy given off the fuel by using this formula:

Kinetic theory can be describes as a scientific theory of the movement of an object. Kinetic theory relates to capacity of a subject to do work on another object due to their motion. Kinetic theory of matter explains that the same is compose of tiny pieces of, atoms or molecules in continues motion. The theory states that the actions of matter inside an object and the actions heat generates. Kinetic theory explains as well the temperature transition by the means of transmission, where thermal powers shows to be conducted throughout matter, heating up cooler

In 1892, Sir James Dewar performed experiments in the pursuit of determining the specific heat capacity of palladium. He measured the rise in the volume of vapour produced when placing the solid in boiling liquid. In doing so he invented the Dewar flask by placing a brass container within another container and depriving the gap between them of air, creating near-vacuum conditions.

Heat transmission is the process through which heat is transferred in swap of thermal energy that exists between the physical systems, depending on the pressure and temperature by dissipating heat. The essential modes of transferring the heat are convection, conduction or diffusion and radiation. Heat is transferred from region of high temperature to low temperature region.