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- O00 13. Which of the following is NOT the SI unit of pressure? C. Newton 0 014. Which temperature below causes resting of fluid particles? C. 273 K A. N/ m2 B. Torr D. Pascal B. 100 °C D. -273 K OO 15. What happens to the volume of gas? If, the temperature remains constant but the pressure is decreased. A. decreases B. doubled C. increases D. remains the same O O O16. What happens to the temperature of gas? If, the gas volume decreases and the pressure remains the same. A. decreases B. doubled C. increases D. remains the same O O O O17. Which of the following statements is not a part of kinetic molecular theory? A. Matter is composed of particles that are in constant motion. B. Particle velocity increases as the temperature increases. C. Particles in a system cannot transfer energy to each other. D. Particle interactions involve electrostatic attractions and repulsions. 200 O O O O18. In which of the following groupings of terms are the three terms closely related? A. kinetic energy,…1. The pressure gauge shown in Figure 1 consists of a spring inside vacuum chamber. The chamber is isolated from the a environment by a piston, which is free to move up or down. Ambient pressure exerts a force on the piston, which compresses the spring. The piston has a diameter of 30 mm. At sea level, where ambient pressure is 1 atm, the spring is compressed by distance xo = 14 mm relative to its relaxed length. Suppose the pressure gauge is lowered into water at a lake. At depth D, the spring is compressed by distance x, = 34 mm relative to its relaxed length. Calculate D. Show and explain your work. Vacuum Figure 1A hot air balloon uses the principle of buoyancy to create lift. By making the air inside the balloon less dense then the surrounding air, the balloon is able to lift objects many times its own weight. A large hot air balloon has a maximum balloon volume of 2090 m3 a. What is the density of air inside the balloon, in terms of the pressure P, temperature T, molar mass M, and the gas constant R? b. How much mass can this balloon lift (in addition to the mass of the gas inside) in terms the balloon volume Vb, the atmosphere air density ρa, the density of the air in the balloon ρg, and the gravitational acceleration g? c. If the air temperature in the balloon is 54 °C, how much additional mass, in kilograms, can the balloon lift? Assume the molar mass of air is 28.97 g/mol, the air density is 1.20 kg/m3, and the air pressure is 1 atm.
- A container of variable volume contains oxygen gas at a pressure of 5.45 atm. What is the new pressure inside the container if the container is allowed to expand from an initial volume of 5.20 L to a final volume to 7.25 L? A) 137 atm B) 7.59 atm OC) 1.13 atm D) 3.91 atm4A rubber balloon is blown up and the end tied. Is the pressure inside the balloon greater than, less than, or equal to the ambient atmospheric pressure? Explain.
- 1. The gauge pressure in your car tires is 2.50×105N/m2at a temperature of 35◦C when youdrive it onto a ship in Los Angeles to be sent to Alaska. What is the gauge pressure on anight in Alaska when the temperature has dropped to -40.0◦C? Assume the tires have notgained or lost any air.19. The radius of the bronchial tube is decreased by a factor of 4. The velocity of gas through it initially is 1 m/s. What is the velocity in the section of bronchial tube with decreased radius in m/s?What is gas density, if under pressure of 105 Pa, its molecules move at a speed of 300 m/s? /Give the answer in [kg/m3] /