A closed 1 L water bottle contains air at standard temp and pressure. The bottle is left in a room for a few hours, and the sun heats up the bottle to 30 degrees celcius. What is the new pressure inside the bottle? Please show the answer in atm and 3 degits of precison behind the decimal
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A closed 1 L water bottle contains air at standard temp and pressure. The bottle is left in a room for a few hours, and the sun heats up the bottle to 30 degrees celcius. What is the new pressure inside the bottle? Please show the answer in atm and 3 degits of precison behind the decimal
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- A 2 cm diameter spherical fishing lure is cast into a pond and, though it submerges, it does not sink to the bottom but “floats” wherever it is placed (this is called neutral buoyancy). How many grams is this lure?Large helium-filled balloons are used to lift scientific equipment to high altitudes. (a) What is the pressure inside such a balloon if it starts out at sea level with a temperature of 10 °C and rises to an altitude where its volume is twenty times the original volume and its temperature is -40 °C? P2 = atm (b) What is the gauge pressure? (Assume atmospheric pressure is constant.) Gauge pressure: atmA bicycle tire has a pressure of 6.95 × 105 Pa at a temperature of 16°C and contains 2.00 L of gas. a)What will its pressure be, in pascals, if you let out an amount of air that has a volume of 105 cm3 at atmospheric pressure and at the temperature of the tire? Assume tire temperature and volume remain constant.
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- 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 atmThe figure below shows a gas contained in a vertical piston–cylinder assembly. A vertical shaft whose cross-sectional area is 0.8 cm2 is attached to the top of the piston. Determine the magnitude, F, of the force acting on the shaft, in N, required if the gas pressure is 3 bar. The masses of the piston and attached shaft are 24.5 kg and 0.5 kg, respectively. The piston diameter is D = 10 cm. The local atmospheric pressure is 1 bar. The piston moves smoothly in the cylinder and g = 9.81 m/s2.A basketball is pressurized to a gauge pressure of PG = 55 kPa when at the surface of a swimming pool. (Patm = 101 kPa). The ball is then submerged in the pool of water which has a density ρ = 1000 kg/m3. Assume the ball does not change in mass, temperature, or volume as it is submerged. Calculate the absolute pressure inside the basketball in kPa when it is at the surface. Write an equation for the pressure difference ΔP between the inside and outside of the ball when it is submerged a distance y below the surface of the water. Solve the pressure equation for the depth (in meters) at which the pressure difference between the inside and outside of the ball will become zero. At this depth the pressure inside the basketball is the same as the pressure outside the ball.