A vertical, frictionless piston-cylinder device contains a gas at 600 kPa absolute. The atmospheric pressure outside is 100 kPa absolute. The piston has a diameter of 50 mm. a) Determine the mass of the piston. b) If the mass of the piston is now halved---- what would be the gauge pressure of the gas?
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- 2. Consider a monatomic gas in a 2-dimensional box with a rectangular area A. The velocity distribution for this gas is given by (you do not need to prove this): {-m (C +C)/ 2kT} f (C,,C,)=A e Find: A, the speed distribution, and the mean speed, C.2) In a thermonuclear device, the pressure of 0.050 liters of gas within the bomb casing reaches 4.0 x 106 atm. explosion, the gas is released into the atmosphere where it reaches a pressure of 1.00 atm. What is the volume of the gas after the explosion? When the bomb casing is destroyed by theUsing the kinetic model of gases, explain how gases exerts a pressure on the walls of its container. When a gas particle collides onto the wall of the container, a force is exerted on it. Numerous such collisions by the many molecules results in an average force exerted on the wall. This force acting per unit area give rise to pressure exerted by the gas molecules on the walls of the container.
- Question 3 A gas is contained in a vertical, frictionless piston- cylinder device. The piston has a mass of 4 kg and a cross- sectional area of 35 cm². A compressed spring above the pis- ton exerts a force of 60 N on the piston. If the atmospheric pressure is 95 kPa, determine the pressure inside the cylinder. 60 Ν = 95 kPa atm Mp = 4 kg A = 35 cm² P = ?a 6.0 cm diameter cyliinder of nitrogen gas has a 4.0 cm thick movable copper piston. the cylinder is oriented vertically as shown in the figure, and the air above the piston is evacuated. when the gas temperature is 25 degree C the piston floats 20 cm above the bottom of the cylinder what is the gas pressure? how many gas molecules are in the cylinder?An aquatic organism needs to be neutrally buoyant to stay at a constant depth. Fish accomplish this with an internal swim bladder they can fill with air that they take in from the water through their gills. One complication is that the pressure in the swim bladder matches that of the surrounding water, but the water pressure changes with depth. Because the volume of a gas is inversely proportional to pressure (as you may already know if you have studied the ideal-gas law), the volume of air in a fish's swim bladder decreases with depth unless the fish actively adds more air.
- I put air in the tires of my car during the summer, while it was 28.8 °C outside (about 83.8 °F). My tires say to fill them to a pressure of 203,000 Pa. Boltzmann's constant is 1.38 * 10 ^ - 23 * J / K A) If my tires have a volume of 0.0100 m³, how many air molecules are in the tire? N = molecules B) These tires go all summer without losing any air, however come fall the temperature drops down to 8.65 °C (about 47.6 °F). Assuming the volume doesn't change (because it doesn't) what is the new pressure in my tires? P=Tire gauges for air pressure as well as most other gauges used in an industrial environment take into account the pressure due to atmosphere on earth that's why your car gauge reads zero before you put it in on your tire to check your pressure this is called gauge pressure. The real pressure with any tire or after or other objects containing pressurized stuff would be a combination of what the gauge reads as well as the atmospheric pressure. If a gauge on a tire reads 26.23 psi what is the real pressure in the tire pascals? The atmospheric pressure is 1.01×10 to the fifth power PAI Review I Constants I Periodic Table You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to gravity is 3.71 m/s. Part A The pressure at the surface of the water will be 110 kPa, and the depth of the water will be 14.4 m. The pressure of the air outside the tank, which is elevated above the ground, will be 91.0 kPa. Find the net downward force on the tank's flat bottom, of area 2.30 m, exerted by the water and air inside the tank and the air outside the tank. Assume that the density of water is 1.00 g/cm. Express your answer in newtons. > View Available Hint(s) να ΑΣφ x" x•10 Submit Previous Answers
- The absolute pressure of a gas in an enclosed cylinder on a day is 3.67 A low pressure storm comes upthe conditions in the gas cylinder remain unchanged does the absolute pressure of the gas increase, decrease, or remain the same? What about the gauge pressure ?An aquatic organism needs to be neutrally buoyant to stay at a constant depth. Fish accomplish this with an internal swim bladder they can fill with air that they take in from the water through their gills. One complication is that the pressure in the swim bladder matches that of the surrounding water, but the water pressure changes with depth. Because the volume of a gas is inversely proportional to pressure (as you may already know if you have studied the ideal-gas law), the volume of air in a fish's swim bladder decreases with depth unless the fish actively adds more air. ▼ Part A Consider a 3.9 kg freshwater fish whose tissues have an average density of 1050 kg/m³. To what volume in mL must the swim bladder be inflated for the fish to be neutrally buoyant at the surface? Express your answer in milliliters to two significant figures. AV = Submit VD] ΑΣΦ Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining ? mLA closed, rigid container with a given mass of helium gas is heated until the temperature is doubled. Which of the following statements is TRUE? A The pressure of the gas is unchanged, because there is no relationship between temperature and pressure. The pressure of the gas is unchanged, because helium gas is lighter than the air outside the container. The pressure of the gas also doubles, because temperature and pressure are directly related. D. The pressure of the gas is halved, because temperature and pressure is inversely related. ©2021 Iluminate Education TM, Inc.