volume of a gas is 400.0 mL when the pressure is 1.00 atm. At the same temperature‚ what is the pressure at which the volume of the gas is 2.0 L? a. | 0.5 atm | c. | 0.20 atm | b. | 5.0 atm | d. | 800 atm | ____ 2. The pressure of a sample of helium is 2.0 atm in a 200-mL container. If the container is compressed to 10 mL without changing the temperature‚ what is the new pressure? a. | 200 atm | c. | 100 atm | b. | 0.10 atm | d. | 40. atm | ____ 3. A sample of argon gas at standard
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liquid or gas. Use them to help you cross out the wrong information in the table below so you are left with only the correct information. solid liquid gas Extension: Using your table above‚ explain the following a) Why does a solid have a fixed shape? A solid has a fixed shape because the particles are very close together and arranged in strong regular lines although they vibrate the particles are so packed together they can’t move. b) Why can a gas be easily
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reason why water has a high/strong surface tension. Heat of Vaporization-the quantity of heat a liquid must absorb for 1 g of it to be converted from the liquid to the gaseous state. Evaporative Cooling- The faster molecules escape and become a gas and the slower/cooler molecules left behind‚ causing a cooling effect. Specific Heat- A measurement of how well a substance resists changing its temp when absorbs or releases heat. Heat-the measure of the total quantity of kinetic energy due to
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refineries‚ chemicals processing industries‚ open cost mines and other confined areas‚ which demands the need for diesel power packs. WORKING PRINCIPLE The aqua silencer is more effective in the reduction of emission gases from the engine exhaust gas using perforated tube. By using perforated tube the back Pressure. Will remain constant and the sound level is reduced. Using the perforated tube the fuel consumption remains same as conventional system. By using water as a medium the sound can be
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biological substances occur as mixtures of different components in the gas‚ liquid‚ or solid phase. In order to separate or remove one or more of the component from its original mixture‚ it must be contacted with another phase. The two-phase pair can be gas-liquid‚ gas-solid‚ liquid‚ or liquid-solid. Absorption When the two contacting phases are a gas and a liquid. A solute A or several solutes are absorbed from the gas phase into a solid phase. Distillation A volatile vapor phase and a
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Sound A. What is the definition of Sound? Sound is everything that a person‚ animal or computer can hear. It can be created in a countless number of ways and occurs from anything as simple as tapping on a table. All sounds are a series of vibrations that travel through a medium in all possible directions. The cause of sound is the vibration of an object; once the item vibrates the sound waves then radiate outwards until they are either stopped or they die out. A sound wave has three characteristics:
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Chapter 3 Fluid Statics: Definitions Statics: ∑F = 0. In statics we have only pressure as surface force and weight as body force. Thus‚ when fluids are still‚ the pressure is balanced by the fluid weight. No relative motion between adjacent fluid layers. Shear stress is zero Only _______ can be acting on fluid surfaces Gravity force acts on the fluid (____ force) Applications: Pressure variation within a reservoir Forces on submerged surfaces Buoyant forces 9/4/2013 1 Pressure Pressure is defined
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The Molar Mass of a Volatile Liquid Adam Kozdrowicz Adam Li 11/05/12 Mr. McCready Purpose: The purpose of this procedure is to determine the molar mass of an unknown liquid‚ evaporate a sample of a liquid substance‚ and measure certain physical properties of the substance as it condenses. Procedure: 1. Obtain safety goggles. 2. Trim a piece of aluminum foil so that it covers the top of a small 13 x 100 mm test tube. Secure the foil with electrical tape. Make sure
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that this relation becomes: This relation is useful because‚ in order to obtain a value for we need to calculate it relative to some other value (i.e.‚ a reference state). If we consider the simplest case that we can think of‚ that is an ideal gas‚ we can rearrange‚ substitute and integrate where the values refer to whatever the reference state is chosen to be. There are two issues with this: • there is not a simple choice of what the reference state should be • at low (zero) pressure
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Objective: to show the relationship between pressure and temperature of saturated steam Apparatus: a Marcet boiler (Figure 1) is used. It is provided with a pressure gauge‚ a digital thermometer and a safety valve. An aneroid barometer is used to determine atmospheric pressure. 1 2 3 Drain valve Heater Overflow Variation of saturation temperature with pressure Thermodynamics Laboratory Manual Marcet boiler 4 5 6 7 8 9 Temperature sensor Pressure relief valve Filler opening with
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