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A bottle of soda is capped when the pressure of carbonation is 0.20 MPa. How long before the pressure has dropped to 0.11 MPa?
1. Identify the system. Physically and mathematically.
2. Identify the surroundings and boundary.
3. List all of the interactions. Physically and mathematically Include all heat transfer, work, and energy changes.
4. Identify state 1 and state 2.
5. List all assumptions
6. Write the first law for the problem.
A rigid sealed 50 liter tank contains Argo at a pressure of 5 MPa and 400K. What is the mass of argon inside?
an aircraft cooling system bleeds air from the engine compressor at 300 kpa and 200 c at the rate 0.09 kgs. the air is
a weather ballon is launched into the atmosphere by meteorologists. when the balloon reaches an altitude where is is
a dam spillway is tested with a 130th scale model matching the froude number. the flow over the dam has an average
A perfect gas (methane) undergoes a reversible polytropic process in which the polytrotic exponent is 1.4. 1) Using the first law, arrive at an expression for heat transfer per unit mass solely as a function of the temperature difference (change in T..
a simple torsion-bar spring has the shear stress in the steel g 80gpa shaft is not to exceed 90 mpa and the vertical
Obtain a new solution, and determine whether any buckling constraints are active. If no buckling constraints are active for L = 10 in., re-run the analysis by increasing L , and estimate the value of L at which at least one buckling constraint b..
an air-standard otto cycle has a compression ratio of 8 and the temperature and pressure at the beginning of the
a piston-cylinder device contains 4.53 kg of refrigerant-134a at 1200 kpa and 60 degc. the refrigerant is now cooled at
1 air at the inlet of a nozzle is at 500 kpa 42.2oc and a velocity of 87 ms. the nozzle exit pressure is at 132 kpa.
it is desired to prepare an emulsion in a baffled 4 in number tank using standard flat-blade disc turbine. the tank is
Determine a) the volume of the tank,b)the final temperature and pressure, and c) the internal energychange of the water.
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