Experiment 1: Pressure, Temperature, and Velocity Measurement Objective: The objective of this experiment is to determine the pressure and density of laboratory air, calibrate a pressure transducer and scannivalve, then determine the test section speed as a function of fan speed using three methods of velocity measurement. Equipment: Absolute pressure transducer, digital thermometer, pressure transducer (voltmeter), micromanometer, scannivalve, Pitot tube, low-speed wind tunnel. Part 1: Measurement of Atmospheric Pressure and Density 1. Read the barometer and wind-tunnel thermocouple. 2.
Name: 6.03: Calorimetry Data and Observations: Part I: Insert a complete data table, including appropriate significant figures and units, in the space below. Also include any observations that you made over the course of part I. (4 points) I observed that when the metal is placed inside the calorimeter, it transfers heat to the water making the water increase temperature while the metal will decrease temperature. I also noticed that the system was the metal and the surroundings is the water, this is because the water is taking in the heat from the metal making the water warm. Metal Name Mass of Metal Volume of water Initial temp.
LabQuest 34 Vapor Pressure and Heat of Vaporization Vapor pressure or scientifically called equilibrium vapor pressure is the condition wherein the vapor from a liquid over the same liquid in a sealed container is at a point wherein the amount of gas leaving the liquid equals the amount of gas re-entering the liquid from the vapor above the liquid. However there is a mathematical between temperature and vapor pressure, and the Clausius-Clayperon equation attest to this relationship. Clausius-Clayperon equation - ln P = - [∆Hvap / R][1/T] +C The intent of this experiment was to determine the temperature/vapor pressure relationship using the volatile liquid ethanol, CH3CH2OH; and calculate its heat of vaporization. This data was collected over a range of temperatures, 22.4° C to 34.9° C. It was intentional that the temperature remained under 40° C less the pressure inside the Erlenmeyer flask got high enough to pop the stopper out of the Erlenmeyer flask. Materials and equipment: MATERIALS Labquest 20 mL syringe Labquest App two 125 mL Erlenmeyer flasks Vernier Gas Pressure Sensor ethanol, CH3CH2OH Temperature Probe 400 mL beaker rubber stopper assembly 1 liter beaker plastic tubing with two connectors hot plate Procedure: The apparatus was set up as requested by the Lab quest 34 handout and an initial pressure reading of 101.6kpa was obtained at room temperature, 22.4° C. Then the Erlenmeyer flask and the sensors were conditioned to the water bath by holding the flask down into the water bath to the bottom of the white stopper for 30 seconds, and then the valve on the white stopper was closed to keep the ethanol vapor from leaving the container at any time during the experiment.
The evidence of sea floor spreading was further supported by Vine and Drummond, who studied the magnetic pattern of the sea floor. They found that the Earth’s magnetic field changes over time, because as magma from the mantle rises to the crust it cools but the basalt will align to the field it cools to. It is also found that on either side of mid oceanic ridges there were symmetrical magnetic patterns, so suggesting that the ocean was created at the mid oceanic ridges and as new ocean floor cooled, it pushed the crust away. Both Hess and Vine and Drummond found evidence that is crucial to the explanation of how continental drift happened, and it is very important in the development of geologists understanding, however other people found evidence to support continental drift also. Dan McKenzie went on to further explain sea floor spreading, being able to explain why new crust was made at mid oceanic ridges.
D. convection pollution. 4. LINK ITEM 67 PLEASE GO ON TO THE NEXT PAGE. GA 2002 Gr8 REMSS SCIENCE ID:69102 B 5. When scientists “seed” a cloud to produce rain, they are trying to change the water cycle by altering A. accumulation.
Measurement of Heat Capacity Ratio and Speed of Sound in Gases Experiment 1 September 12, 2013 Physical Chemistry Laboratory Abstract The speed of sound in gases will be studied by two types of tests on four gases: argon, carbon dioxide, helium, and dry air. The two tests that will be used on different settings on an oscilloscope are: the X-Y mode and internal time base mode. The gases will be filtered through a tube that is connected to an acoustical tube with a microphone and earpiece. The different waves will be displayed through a screen on the oscilloscope where the wavelength can be determined by studying the different patterns. Once the wavelength is calculated, the heat capacity ratio for each of the gases will be calculated.
The techniques help analyzing. Identifying, purifying, and quantifying unknown separable mixtures. Mobile phase is either a liquid or gas which moves the solvent through the stationary phase during the process. The stationary phase is a liquid or solid component that’s fixed in a place for the procedure. Paper chromatography works on capillary attractions.
One more similarity is the equipment they used to get the results for example they both used temperatureDetermining global warming effects on weather can be done in many different in these two articles I found that you can use ice or water. In the rising of the seas they explain how the melting of the ice caps raise the sea level but in the greenhouse. It breaks down how they can use ice to determine the future weather. Global warming is something more people need to be aware of and get more knowledge on, because after reading these two articles I found out what our world might become just by looking into the past. These two article had there similarities and differences in how they go about finding out about the past but yet both are very
The parachute descends at a constant speed, as it has reached terminal velocity. Variables There are a few possible variables that would affect terminal velocity of a parachute: • The shape of the object, would affect the air resistance, depending on how smooth or rough the surface of the object is. • The surface area of the parachute, which is also the size of the parachute, would affect the air resistance acting on the parachute, which will affect the speed that the parachute falls. • The length of the string between the parachute and the object
TITLE Experiment 2 - Cooling Tower Demonstrator OBJECTIVES • To determine the “end state” properties of air and water from tables or charts. • To determine energy and mass balances using steady flow equation on selected system. • To investigate the effect of cooling load on “Wet Bulb Approach”. • To investigate the effect of air velocity on: (a) Wet Bulb Approach, (b) pressure drop through the packing. INTRODUCTION A cooling tower is a heat rejection device, which extracts waste heat from processes to the atmosphere via a water stream.