Entropy

The concept of energy is very important to know because it is used in everyday life. Energy is used when getting out of bed just to dread going to school, heating up left overs, and even boiling some water. Energy cannot be destroyed or created, only passed from one object to another. A great example of energy is the transfer of heat. An ice cube sitting in the hand of a person can show energy at work. Heat from the hand causes the cube to melt and change forms into liquids. To understand energy…

The purpose of this research paper was to determine the influence of cellulose and date palm pad on cooling efficiency, low cost, and reduced temperatures. A study was undertaken to compare the two types of pads to determine the cooling efficiency, low cost, and reduced temperatures. The study found that cellulose pads gave high cooling efficiency, but at the same time increased the total cost. Date palm pads saved water compared to cellulose pads. The cost of using the date palm pad was less…

Temperature is one of the most important factors that affect an organism’s metabolic rates. In ectothermic organisms, their metabolic rate depends on the external environmental conditions. If temperature increases, so will their metabolic rates. Endothermic organisms do not depend on external conditions but rather can produce and maintain the generated heat within their systems to maintain their bodies at a constant temperature. If temperatures increase or decrease above or below the desired…

In the novel, Like Water for Chocolate, Laura Esquivel uses magical realism to tell the story of a young girl and her family during Mexican Revolutionary times. Tita’s forbidden love with Pedro causes many complications for the family. Because of the magical elements that Esquivel adds to the novel, unusual circumstances occur to Tita and the people around her causing chaos and tragedies among them. Esquivel uses Tita and Gertrudis’ experiences of high temperature to represent their ability to…

In the dynamic firefighting service leaders often times find their department in need of adaptive change. This change could be driven by a change in the economics, municipal policies, inter-department policies or perhaps a new leader with a new vision. None the less, change is needed in order to meet the new needs of the department. Often times, this change is an adaptive change that no simple answer by following standard operating procedures or hiring a consultant. Solutions to adaptive change…

Discuss the relationship between energy and society. The principle question to ask when examining the relationship between energy and society is whether society drive changes in energy or energy stimulates societal change. The most common answer is that as society innovates and grows more forms of energy are harnessed and so our use of energy changes. However, at a more fundamental level, every major change in human history has been caused by the availability of energy in its various forms. The…

1.1 What is a heat engine? In thermodynamics, a heat engine is a device/system that uses heat to do work, i.e. it converts heat or thermal energy to mechanical energy. 1.2 How does a heat engine work and its operating principles? For a heat engine to work, it must operate in cycles. Firstly, heat is added into the system. Let the heat added into the system be represented by [Qh]. After that process, some of the energy that were added into the system will be used to do work e.g the…

How Does Temperature (thermal kinetic energy) Affect the Phases of Matter? Observation Can matter be in anything that elements can mix to something different? Why does matter have to have more than 2 elements? What things do not have matter? Why does matter have to have more of, weight, volume or density? Why is there such things called matter? Why is the earth made of matter? How much does matter influence the earth and what it does to help? What is matter? How does…

By utilizing heat transfer from the hot combustion gases we can determine temperature distribution in the nozzle. If the temperature distribution and heat flux which are time dependent are given on the surface of wall we can find internal temperature distribution. This problem can be classified as direct heat problem. However many heat transfer problems which occur in practical take transient measurements at more than one location to find heat flux and temperature distribution on the wall. This…

Below, one representative graph and a set of sample calculations are included which will show how the values for the enthalpy of combustion of the fuel sources are deduced. Graph 1: Scatter plot showing the change in the temperature of 80.0mL of distilled water in the tin calorimeter during and after the combustion of the kerosene for the first conducted trial. The linear trendline was created for the last three data points, where the water was allowed to cool, which was then extrapolated…