Introduction In this lab‚ the purpose was to verify Hess’s Law. Four main topics were covered during this experiment including enthalpy of reaction‚ heat of formation‚ Hess’s Law‚ and calorimetry. The enthalpy of reaction‚ ΔHrxn is the heat or enthalpy change for a chemical reaction. The energy change is equal to the amount of heat transferred at a constant pressure in the reaction. The change represents the difference in enthalpy of the products and the reactants and is independent of the steps
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Pituitary Anterior – Located in the base of the brain attached to the hypothalamus. Growth Hormone(GH) – Stimulates an increase in size and rate of division of body cells; enhances movement of amino acids through membranes; promotes growth of long bones. Prolactin (PRL) – Sustains milk production after birth; amplifies effect of LH in males. Thyroid-stimulating Hormone (TSH) – Controls secretion of hormones from the thyroid gland. Adrenocorticotropic Hormone (ACTH) – Controls secretion of certain
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Energy‚ often in the state of heat‚ is involved in chemical reactions and phases changes. Changes in energy‚ can translate in temperature differentiations. In such a case‚ energy is transferred as heat. The quantity of heat exerted in a reaction referred to as (joules) can be identified through the following equation: Heat Exerted= (Mass of Sample) x (Specific Heat) x (Change in Temperature) q=msΔT Within a calorimeter is where the reactions within this lab take place. A calorimeter allows the
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Lines Arterial line and triple lumen subclavian central venous catheter was placed for hemodynamic monitoring and administering medication. Physical Examination Vital sign. Mr. P is a 1.8 meter tall and weight 152.2kg. His other vital sign are as follow: blood pressure is 114/68 mm Hg‚ heart rate of 88 bpm‚ oxygen saturation 99%‚ and respiratory rate 18 breaths per minute. General appearance. Mr. P appears obese‚ stated age‚ and critically ill. He is sedated and has no signs of discomfort. He
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Kamaleddine CHM 1120 Stanley Ngeyi February 25‚2012 Thermodynamics/Calorimetry Introduction: Thermochemistry investigates the relationship between chemical reactions and energy changes involving heat. The amount of heat generated or absorbed in a chemical reaction can be studied using a calorimeter. Purpose: The purpose of this laboratory was to determine the heat capacity of the calorimeter‚ and to understand thermodynamics/calorimetry by applying the calorimetry equation‚ Heat
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First Law-Exercise: Problem 1: A volume 10 m3 contains 8 kg of oxygen at a temperature of 300 K. Find the work necessary to decrease the volume to 5 m3‚ (a) at a constant pressure and (b) at constant temperature. (c) What is the temperature at the end of the process in (a)? (d) What is the pressure at the end of process in (b)? (e) Show both processes in the p-V plane. Problem 2: The temperature of an ideal gas at an initial pressure p1 and volume V1 is increased at constant volume until the pressure
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CHEM 212 Laboratory - Dissolution of Borax Formal Lab Report Instructions Title Page: Experiment title‚ your name and partner name‚ course and section number‚ date‚ Signed honor code statement‚ and abstract. I (your name here) pledge that this assignment has been completed with accordance to the George Mason University Honor Policy as well as the policy set by the course. This work is my own and bears no resemblance to any other student’s work (past or present). x__(Signature)______ Purpose
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THERMODYNAMICS - THEORY A control volume may involve one or more forms of work at the same time. If the boundary of the control volume is stationary‚ the moving boundary work is zero‚ and the work terms involved are shaft work and electric work. Another work form with the fluid is flow work. Flow Work (Flow Energy) A Flow Element Flow Work with Imaginary Piston Click to View Movie (68 kB) Work is needed to push the fluid into or out of the boundaries of a
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Chemistry Study Guide Oct 2nd 1 hour Exam Chapter 9- Thermodynamics KE= ½ mv2 w= F∆x w= force × distance ∙ A state function refers to a property of the system that depends only on its present state. ∙Internal Energy = heat + work ∆E = q + w ∙Pressure = Force/Area = P = F/A ∙Work= - external pressure × change in volume w = - P∆V Enthalpy H = E + PV qp = ∆E + P∆V ∆H = qp ∆H = H products H reactants
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Name Lab Partner Name(s) Thermodynamics‚ Enthalpy of Reaction Lab March 27‚ 2014 I. Purpose The purpose of this lab is to learn how to determine the heat of reaction. II. Safety 1. Wear appropriate safety attire (goggles‚ aprons‚ hair tie‚ etc.). 2. Do not directly inhale or ingest chemicals. 3. Understand safety information regarding the chemicals being handled during the lab (hydrochloric acid‚ sodium hydroxide). 4. Be aware of how to operate all lab equipment. 5. Clean hands
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