Determine the volume, in ft3, of 2 lb of a two-phase liquid-vapor mixture of Refrigerant 134A at 40°F with a quality of 50%. What is the pressure, in lbf/in.²? Part A Determine the volume, in ft3, of 2 lb of a two-phase liquid-vapor mixture of Refrigerant 134A at 40°F with a quality of 50%. ft3 V-i
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- A 3.00 L tank contains air at 3.00 atm and 20.0° C. The tank is sealed and cooled until the pressure is 1.00 atm. Part A What is the temperature then in degrees Celsius? Assume that the volume of the tank is constant. Express your answer in degrees Celsius. T = Submit Part B V = ΑΣΦ Submit Request Answer If the temperature is kept at the value found in part A and the gas is compressed, what is the volume when the F Express your answer with the appropriate units. μA Value Request Answer Units ≈ ? ? OConsider an ideal gas at 27.0 degrees Celsius and 1.00 atmosphere pressure. Imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. Part A What is the length L of an edge of each small cube if adjacent cubes touch but don't overlap? Express your answer numerically in meters. ► View Available Hint(s) L = for Parval for PartAddo for Part Submit redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A mSolve for Part B
- 5.0 g of nitrogen gas at 20°C and an initial pressure of 2.8 atm undergo a constant-pressure expansion until the volume has tripled. Part A What is the gas volume after the expansion? Express your answer with the appropriate units. ► View Available Hint(s) V= Submit HA Value Previous Answers Units ? X Incorrect; Try Again; 5 attempts remainingA surveyor has a stainless steel measuring tape that is calibrated to be 100.000 m long (i.e., accurate to ±1 mm) at 20°C. She needs to add the correction factor to get the true distance. Submit Correct Part B How large, in mm, is the correction factor? Express your answer in millimeters to two significant figures. ► View Available Hint(s) Previous Answers AL = 11 Submit VΠ ΑΣΦ Provide Feedback Previous Answers ? X Incorrect; Try Again; 14 attempts remaining mm3.3 In the lungs, the respiratory membrane separates tiny sacs of air (pressure 1.00x10°Pa) from the blood in the capillaries. These sacs are called alveoli. The average radius of the alveoli is 0.125 mm, and the air inside contains 14% oxygen. Assuming that the air behaves as an ideal gas at 310K, calculate the number of oxygen molecules in one of these sacs. 3.4 The pressure of an ideal gas is reduced by 50%, resulting in a decrease in temperature to 75% of the initial value. Calculate the ratio of the final to initial volumes of the gas.
- The specific heat of liquid water is 4190 J/kg. K. ▼ Part A What is the molar specific heat of liquid water in J/mol. K? Give your answer as a multiple of R, rounded to the nearest half integer. Express your answer as a multiple of R to the nearest half integer. Cmol = 9 R Submit Correct Part B Previous Answers Equal moles of liquid water and helium gas are heated at constant pressure from the same initial temperature to the same final temperature. By what factor is the entropy increase of the water larger than the entropy increase of the helium? Express your answer to two significant figures. AS water ASHe Submit 17| ΑΣΦ Request Answer ?The balloon has a mass of 15 g (empty) and it is filled with air having a temperature of 20 °C having the density of 1.202 kg/m³. If it is released, it begins to accelerate upward at 8 m/s². (Figure 1) Figure 5 mm 8 m/s² 1 of 1 Part A Determine the initial mass flow of air from the stem. Assume the balloon is a sphere having a radius of 200 mm Express your answer using three significant figures. m = Submit ΠΙ ΑΣΦ Provide Feedback ↓↑ vec 4 Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining ? g/sA 22-cm-diameter vertical cylinder is sealed at the top by a frictionless 16 kg piston. The piston is 79 cm above the bottom when the gas temperature is 303° C. The air above the piston is at 1.00 atm pressure. Part A What is the gas pressure inside the cylinder? Express your answer with the appropriate units. ► View Available Hint(s) Po = Submit Part B μÀ Value Units ? What will the height of the piston be if the temperature is lowered to 13°C? Express your answer with the appropriate units.
- Part A The number density in a container of neon gas is 5.40x1025 m3. The atoms are moving with an rms speed of 665 m/s. What is the pressure inside the container? Express your answer with the appropriate units. HẢ ? Value Units Submit Request Answer Part B What is the temperature inside the container? Express your answer with the appropriate units. HA Value Units %3DIf the pressure of gas is doubled and its absolute temperature is quadrupled, the volume is what factor times the original? Select one: a. 2 b. 1/2 c. 1/4 d. 4A large cylindrical tank contains 0.750 m³ of nitrogen gas at 22.0°C and 6.50x103 Pa (absolute pressure). The tank has a tight-fitting piston that allows the volume to be changed. Part A What will be the pressure if the volume is decreased to 0.530 m³ and the temperature is increased to 165°C? Express your answer in pascals. —| ΑΣΦ P = Submit Request Answer < Return to Assignment Provide Feedback ? Pa