Determination of a Rate Law Megan Gilleland 10.11.2012 Dr. Charles J. Horn Abstract: This two part experiment is designed to determine the rate law of the following reaction‚ 2I-(aq) + H2O2(aq) + 2H+I2(aq) + 2H2O(L)‚ and to then determine if a change in temperature has an effect on that rate of this reaction. It was found that the reaction rate=k[I-]^1[H2O2+]^1‚ and the experimental activation energy is 60.62 KJ/mol. Introduction The rate of a chemical reaction often
Premium Chemical reaction Reaction rate Temperature
The Effect of Caffeine on Heart Rate Caffeine is made by plants as a way of getting rid of insects. Cocoa is produced in South America‚ coffee in Africa and tea is produced in Asia have all been used for a very long time to give us a little rush in order to keep us going. Now caffeine is also used as a flavour enhancer in cola and other soft drinks also it has medicinal uses in aspirin preparations and is found in weight-loss drugs and as a stimulant in normal people in everyday to
Premium Caffeine Coffee Nervous system
The heart is one of the most important organs in your body. So what does it do? It’s function is to pump blood to all the other organs. But the heart can not function alone‚ it has other organs and blood vessels helping it. The human heart is a pear shaped and about the size of a human fist. It is made of muscle and there are three different layers. The outer layer is called the epicardium. The middle layer is called the myocardium which is made of muscles that contract. The inner layer is called
Premium Heart Blood
The Human Heart The Human Heart is one of the most important organs in the entire human body. The heart is a muscular organ that acts like a pump to continuously send blood through the body. The heart beats approximately about seventy-two times per minute of our lives. Without the heart’s pumping action‚ blood can’t circulate within the human body. The heart is enclosed in a double walled sac called the Pericardium. The pericardium has outer and inner coats. The outer coat is tough and thickened
Premium Heart
Literature Review The human heart is a very complicated organ‚ with the main purpose to pump life sustaining blood throughout the human body. It also supplies oxygen and nutrients to all areas and clears harmful waste from the body. The heart is made up of cardiac muscle which beats on its own. According to the article ‘heart ‘which was written by The National Geographic the heart will slow down or speed up depending on how the body is being used. This is done by nerve signals which are being
Premium Heart rate Heart Muscle
the following on heart rate: vagal stimulation‚ cold‚ heat‚ pilocarpine‚ atropine‚ epinephrine‚ digitalis‚ and potassium‚ sodium‚ and calcium ions. 6. To define vagal escape and discuss its value. 7. To define ectopic pacemaker. I nvestigation of human cardiovascular physiology is very interesting‚ but many areas obviously do not lend themselves to experimentation. It would be tantamount to murder to inject a human subject with various drugs to observe their effects on heart activity or to expose
Premium Heart Muscle Acetylcholine
Physical Sciences PROCESS ENGINEERING A LAB REPORT 1 Name: Salimli Samir Experiment Title: Calibration of Bourdon Tube Pressure Gauge Date of Experiment: 12.09.2015; Supervisor: Azizaga Azizov Contents Objective 3 Introduction 3 Apparatus 4 Theory 4 Procedure 6 Results 6 Discussion of Results 9 Conclusion 10 References 10 Objective The main purpose for doing this experiment is to fulfill pressure calibration on a Bourdon tube pressure gauge using a dead weight tester. Introduction
Premium Chemistry Thermodynamics Petroleum
Vapor Pressure and Heat of Vaporization Introduction: Evaporation is the process of a liquid becoming vaporized. When a liquid is placed into a confined space some of the liquids will evaporate. Evaporation of the liquid depends on the strength of the intermolecular forces that are between liquid molecules. During the evaporation process of the liquid‚ new gas molecules exerts pressure in the sealed container‚ while some of the gas condenses back to the liquid state. If the temperature inside
Premium Gas Evaporation Water
Age___18_____Resting Heart Rate(bpm) __70____ Maximum Heart Rate (bpm)_220_____ -__18____= ____202__ Target Heart Rate (bpm)_202_____ -_70_____= _135_____ _135_____X __.5____=___66___+ __70____= ___136___ (lower) ___135___X __.85____=__114.7____+ __70____= ___184.7___ (upper) Part II Heart Rate after step/cardio test ____135_____ 3524250267970 Was this person within their target heart rate? (Please circle) Yes or No Participant #2: _______Savanah Spinter___________ Age___14_____Resting Heart Rate(bpm)
Premium Heart rate
The Effect of Exercise on Heart Rate The aim of this investigation is to find out how different types of exercise can affect my heart rate. To measure and record my heart rate‚ I am going to undergo an experimental test. I am going to do 3 different types of exercise: walking‚ light jog and lastly hard running. First‚ I will draw out a table to record my results‚ and then I will measure my resting heart rate for one minute. To make the experiment as accurate as possible‚ I will
Premium Heart Blood Cardiology