WHAT IS FUMIGATION? Fumigation is the process by which a lethal chemical is released into an enclosed area to eliminate an infestation of pests. This process may be used in order to rid a home or other structure of insects such as termites or roaches‚ but it may also be used when products are being processed for export or import in order to rid the goods of exotic pests and organisms. Fumigants are a unique and particularly valuable group of pesticides that can kill insects where no other form
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6 g/mL = 23.97 torr 2 2. given: - vapour pressure of H2O = 19.8 torr PH2 + PH2O = Patm - Phydrostatic PH2 = Patm - Phydrostatic - PH2O PH2 = 760.4 - 23.97 - 20 torr PH2 = 716.63 since the total pressure of the gas trapped in the burette is: PH2 + PH2O 716.63 + 19.8 = 736.43 torr Figure 1. Pressure dependence on Temperature P corresponding to temperature at which the experiment was done at is 20 torr. 3. Referring to question 4‚ the
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pressure also increases the risk of the tire exploding. Gas mileage refers to the number of miles a vehicle can travel on a gallon of gas. The gas mileage of a car can be affected by several factors such as the driver’s driving habits and tire pressure. Aggressive and high speed driving will normally result in a higher consumption of gasoline. The tire pressure of a car can also have a significant effect on the distance a car can travel on a gallon of gas. Inflating tires to the recommended air pressure
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experiment was to calculate the heat capacity ratio γ for three gases find in three different classes. The three different gases and their classes are; helium which is classified as a monatomic gas‚ nitrogen which is classified as a diatomic gas and carbon dioxide‚ which is classified as a linear triatomic gas. After these experimental heat capacities ratio were calculated they were then compared with theoretical values. Introduction: Heat capacity is a very important concept in thermodynamics. It
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experience of the soldiers was beyond anything that had ever been faced before. A soldier who was attacked by poison gas says that “It seemed as if [his] lungs were gradually shutting up and [his] heart pounded away in [his] ears like the beat of a drum. On looking at the chap next to [him‚ he] felt sick‚ for green stuff was oozing from the side of his mouth.” (Pressey‚ “Poisonous Gas”). After getting attacked‚ this soldier isn’t only poisoned physically‚ but is poisoned mentally as he looks at the
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stopper with the short‚ straight‚ plastic gas delivery tubing through its center. Place the test tube into one of the wells of the 24- well plate. The test tube must stand up straight‚ so wrap a little tissue paper around the bottom of the test tube to help wedge it upright into a well opening. See Figure 1. Observe the reaction. Ties of Gases c. Fill one wide-neck pipet bulb completely with water‚ invert and quickly place it on top of the test tube ’s gas delivery tube as shown in the picture at
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the Joule-Thompson Effect and Coefficient Determination for Helium and Carbon Dioxide Niki Spadaro‚ Megan Cheney‚ and Jake Lambeth University of North Florida‚ CHM4410C Fall 2010 The Joule-Thomson coefficient explains the behavior of any real gas when changes in intensive properties‚ such as temperature and pressure‚ occur. The coefficients for helium and carbon dioxide were determined using a Joule-Thomson apparatus that created constant enthalpy within the system. Using literature values for
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WANTED 0.4 Per 100g Reward For the Capture of: NITROGEN Also Known as: StickStoff‚ Nitrogeno‚ A3OT Height 65pm Weight 14.0067 Characteristics Melting Point- (-210 C) Boiling Point- (-195.795 C) State at Room Temp –Gas Density- 1035 (4 K) Colorless Odorless 78% of Air Wanted For At low temperature can result in burns on hands‚ fingers and other areas of body Prisoner Number 7 Captured By: Daniel Rutherford (1772) Other Covalent Radius -0.71 Electron Affinity- not
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Science quiz review 1. Recall safety rules of a science lab. (WHMIS) a. 2. List examples of elements‚ mixtures‚ and compounds. a. Elements: hydrogen; oxygen; iron; zinc‚ Mixtures: sea water; crude oil‚ Compounds: water; sugar; salt 3. Compare and contrast the properties of elements‚ mixtures and compounds. a. Elements consist of a single kind of atom; They have unique‚ fixed properties; They cannot be separated into simpler unique substances. Compounds consist of two or more kinds
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ethylene glycol. This was discovered as the gas was heated to 90 degrees Celsius causing the liquid unknown to evaporate into a gas while recording the mass‚ volume‚ temperature‚ and volume. This provided the mass of 1.6 grams which was found by subtracting the mass of the Erlenmeyer flask‚ aluminum cover‚ and rubber band from the mass of the Erlenmeyer flask‚ aluminum cover and rubber band and unknown gas after heating. Then the temperature of the gas was determined by taking the temperature of
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