Thermodynamics Essays

  • Laws Of Thermodynamics

    1462 Words  | 6 Pages

    CONSEQUENCES OF THE LAWS OF THERMODYNAMICS The laws of thermodynamics are very easy to be understood... for some it's easy to underestimate their impact. They put liabilities on how energy can be used in the universe. It would be hard to emphasize how significant is. The consequences of the laws of thermodynamics touch on almost every aspect of scientific inquiry in some way. KEY CONCEPTS FOR UNDERSTANDING THE LAWS OF THERMODYNAMICS To understand the laws of thermodynamics, it's essential to understand

  • Thermodynamic Analysis

    700 Words  | 3 Pages

    substantial physical damages. The original physical world transformed dramatically and those changes concern every person, every moment, of every day. An obvious observation is found in the study of thermodynamics. By evaluating some of the initial elements seen in Genesis 1-3, the laws of thermodynamics show how the Fall altered the way energy flow in the universe. Summery Taylor B. Jones provides a study on how

  • Thermodynamic Ice Cream

    1373 Words  | 6 Pages

    cream! We all love it, but do you know the thermodynamics behind it? Thermodynamics is the physical science that deals with the relations between heat and other forms of energy. Other forms of energy such as: mechanical, electrical, or chemical. We are completing this research project to understand how our favorite past time treat can have a more scientific background and how heat flows from a warmer object to a cooler object. As aforementioned thermodynamics deals with a lot of forms of energy, so

  • Thermodynamic Stroke

    1579 Words  | 7 Pages

    Stroke occurs when the blood supply to a part of the brain is suddenly interrupted or when a blood vessel in the brain bursts, spilling blood into the spaces surrounding brain cells (National Institute of Neurological Disorders and Stroke, Stroke Information Page, 2013). There are two types of stroke: ischemic and hemorrhagic. An ischemic stroke is caused when there is a blockage in the blood vessels to the brain (AHA/ASA, 2012). Ischemic strokes account for 85% of strokes (Go, Mozaffarin, Roger

  • Cold Water And Calorimetry Essay

    858 Words  | 4 Pages

    exerted by the atmosphere. Hence, the heated gas does work on the balloon. This illustrates the first law of thermodynamics, which is centered on the relationship between heat and work. Besides this, another law of thermodynamics can be seen in the movement of gas particles from a higher temperature reservoir to a lower temperature reservoir. This exemplifies the second law of thermodynamics, which states that the natural flow of heat is always from a higher temperature body to a lower temperature

  • Heat Of Formation Of Nacl Essay

    1151 Words  | 5 Pages

    October 28, 2015 ABSTRACT In Heat of Formation of NaCl(s), two chemical reactions in the form of the neutralization between NaOH(aq) and HCl(aq) and the dissolution of NaCl(s) to NaCl(aq) were performed. Calorimetry and the First Law of Thermodynamics were employed to find out the respective enthalpies of the reactions. These two values completed the Table of Thermochemical Equations given and with respect to Hess’s Law, the heat of formation of solid NaCl was computed by adding the enthalpies

  • Essay On Heat Pump

    1817 Words  | 8 Pages

    3.1 Heat Pump A heat pump as shown in Figure 3.1 is a device that provides heat energy from a source of heat to a destination called a "heat sink". Heat pumps are designed to move thermal energy opposite to the direction of spontaneous heat flow by absorbing heat from a cold space and releasing it to a warmer one. A heat pump uses some amount of external power to accomplish the work of transferring energy from the heat source to the heat sink. While air conditioners and freezers are familiar examples

  • Solubility Equilibrium Lab Report

    1444 Words  | 6 Pages

    TEH HOOI SAN, TEO SEE ZHENG STUDENT ID 1307297 NO. OF EXPERIMENT EXP 3 TITLE OF EXPERIMENT Phase equibrium DATE OF EXPERIMENT 14/7/2015 PRACTICAL GROUP P2 LECTURER Dr. ONG SIEW TENG Title: Solubility equilibrium Objectives: To study the thermodynamics of solubility of naphthalene in diphenylamine Introduction: Phase equilibrium is a state of balance which rate of transfer of matter or heat from one phase to the other is equal to the rate of transfer in the reverse direction at equilibrium

  • Enthalpy Of Chemical Reactions Using Hess Law

    755 Words  | 4 Pages

    change in enthalpy of 2 reactions using Hess’ Law by using a coffee calorimeter to measure the temperature changes in the sub reactions for MgO and a neutralization reaction. Germain Hess published this law in 1840, which described the first law of thermodynamics. In Hess’ Law, “the enthalpy change in a chemical reaction is independent of any intermediate reactions; that is, it is the same whether it takes place in one or several stages”1. The change in enthalpy can be described by the equation: The enthalpy

  • The Importance Of Calorimetry

    1386 Words  | 6 Pages

    The Calorimeter Calorimetry is the science that was first recognized by a Scottish physician and the scientist Joseph Black. It is related with determining the variation in energy of a system by measuring the heat transfer with the surrounding. It is derived from the word calor in Latin, which means the heat and the pressure. Calorimeter is the device used in the calorimetry science to measure the quantity of heat transported from or to an object. Heat is the transfer of thermal energy between two

  • Arrhenius Equation Research Paper

    856 Words  | 4 Pages

    equation is a mathematical expression which illustrates the effect of temperature on the rate of a chemical reaction and is used to calculate reaction-rate constants\cite{logan}. In the equation, we have $k$ as the reaction-rate constant, R as the thermodynamic gas constant, A as the pre-exponential factor, E$_a$ as the activation energy and finally $T$ as the absolute temperature. Generally, the equation is represented in exponential form: \begin{equation} k = A \exp[-E_a/RT] \end{equation}

  • Acetic Acid Synthesis Lab Report

    1229 Words  | 5 Pages

    Since the extraction temperature of acetic acid extraction prior to terephthalic acid production are desired at T = 313.2 K and atmospheric pressure. The temperature has been carried out since the aqueous solution that fed to extractor column is originally coming from the top product of distillation column in the upstream process, also keeping the temperature at 313.2 K to avoid the crystallization of acetic acid during the process. Therefore, the experimental liquid-liquid equilibrium data for the

  • Calorimetry Lab

    868 Words  | 4 Pages

    Determination of the Heat Exchanged in Chemical Reactions Introduction: Calorimetry is the science of determining heat and energy exchange in various situations and reactions. It is used for many things everyday including solid and liquid fuel testing, waste disposal, and explosive testing. In our lab, we will are applying calorimetry to determine the change in enthalpy of a weak acid-strong base reaction. My beginning question was: How can we apply Hess’ law and calorimetry to chemical equations

  • Thermodynamics: Neuromuscular Therapy

    605 Words  | 3 Pages

    Neuromuscular Therapy is founded on the study of human physiology, client assessment and a detailed understanding of kinesiology and body mechanics. Its global popularity has everything to do with a practitioner's ability to assess a patient's pain pattern and effectively treat. A detailed soft tissue assessment using regionally oriented protocols and the use of hands on techniques that have been used and proven over the last 50 years. Neuromuscular therapy addresses ischemia or reduced blood

  • Hot Water Vs Cold Water Essay

    1472 Words  | 6 Pages

    Abstract— “An explanation for why hot water will sometime freeze more rapidly than cold water is offered. Two specimens of water from the same source will often have different spontaneous freezing temperatures; that is, the temperature at which freezing begins. When both specimens supercool and the spontaneous freezing temperature of the hot water is higher than that of the cold water, then the hot water will usually freeze first, if all other conditions are equal and remain so during cooling. The

  • Lab Experiment: Thermal Radiation Lab

    799 Words  | 4 Pages

    Title: 3.5 Thermal Radiation Date Experiment was performed: 23/2/2018 Lab Partners Name: Dylan Loughnane (15152642) Mark Timlin (14165457) Author of Report: Rebecca Gavin (16153111) Name of Module: Thermal Physics (PH4042) Aims: In this experiment we're trying to show how heat transfer is a mechanism of conduction, convection and radiation. We do this with a two part investigations. First part of the lab will test the stefan-boltzmann constant at

  • Cetane Number Fuels Lab Report

    938 Words  | 4 Pages

    Cetane Number The cetane number of a diesel fuel is the numerical result of engine test designed to evaluate fuel ignition delay. It is defined as the whole number nearest to the value determined by calculation from percentage by volume of normal cetane (cetane No. = 100) in a blend with heptamethylnonane (cetane No. = 15) which matches the ignition quality of the test fuel when compared by this method. High cetane number fuels generally cause lower combustion noise, improved control of combustion

  • Tensile Test Lab Report Essay

    798 Words  | 4 Pages

    SHORT REPORT/LOG SHEET Table 1. Tensile testing results Testing Laboratory MSE Undergraduate Lab Room 6 Materials used Polystyrene (PS) High-density Polyethylene (HDPE) Aluminium Alloy (Al) Specimen Geometry Dumbell shape Test Temperature (°C) 22 Loading rate (mm/min) 2 Nominal dimensions (mm): width, thickness, gauge length PS: 12.01, 1.99, 60 HDPE: 12.04, 3.00, 60 Al: 12.05, 2.03, 60 Mat./ Spec. Width, mm Breath, mm Pmax, N , MPa , MPaL0, mm Lf, mm Af, mm2 %EL %AR PS 12.01 1.99 1016.64 42 42.537

  • Freezing Point Depression Lab

    1657 Words  | 7 Pages

    Introduction: Freezing point depression is a colligative property that calculates the decrease of the freezing point when any solute is added to a solvent. When determining changes in freezing point, solute concentration is measured in molality which is moles of solute per kilogram of solvent. The concentration unit moles per kilogram is temperature independent, because mass does not vary with temperature. The decrease in freezing point of the pure solvent is proportional to the molality of the

  • Cyclohexanone Lab Report

    1871 Words  | 8 Pages

    3.1 ABSTRACT The intermolecular interactions in the N-methylformamide with acetophenone, cyclic ketones (cyclopentanone and cyclohexanone) binary liquid systems are studied in combined experimental and computational methodology. The speed of sound (u), density (ρ) and viscosity ( ) values are measured for binary mixtures of N-methylformamide with ketones over the entire range of mole fraction at temperatures T= (303.15 to 318.15) K, at atmospheric pressure. From the experimental results, the