1. A vertical cylinder capped by a piston weighing 990 g contains 100 g of air at 1 atm and 25°C. Calculate the maximum possible final elevation of the piston if 100 J of work are used to raise the cylinder and its contents vertically. Assume that all of the work goes into raising the piston.

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Q: What is flow energy? Do fluids at rest possess any flow energy?

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Q: 46. Air enters a diffuser with a velocity of 200m/s. Determine the speed of sound in m/s at the…

A: Given  Temperature (T) = 38 o C                              = 311.15 Velocity  = 200 m/s

Q: sider a U-tube whose arms are open to the atmo one arm and light oil (poil = 790 kg/m³) from the…

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Q: If the tank was actually pressurized such that the top surface of the milk was at a pressure of…

A: Given Bottom pressure=40kPa Top pressure=110kPa SGmilk=1.030 Find Actual height of milk in the…

Q: A 10-cm inner diameter pipe has air flowing through it at 50 m/s at 30°C and 1.6 bar (gauge)…

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Q: . Why is the pressure the same in a piston and cylinder system that has been heated, but still…

A: The cylinder-piston system is being heated and the mass of gas contained in the system is constant…

Q: A rigid, stationary, short evacuated tank is adiabatically filled with gas from a horizontal,…

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Q: 4. (20 points) Water (25°C) flows at 4.5 gpm (gpm is gallons per minute) in the system shown below.…

A: a) flow rates will be same along the pipe assuming no change in density.   1 gpm =0.00006309 m3/s…

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A: To answer What happens to a Helium filled balloon that rises up to the sky, with atmospheric…

Q: End AA of the bar ABAB in ) rests on a frictionless horizontal surface, and end BB is hinged. A…

A: It is given that end AA of Bar ABAB rests on frictionless horizontal surface and end BB is hinged.…

Q: Nitrogen gas has a heat capacity of 20.8 and 29.1 J/mol-C at constant volume and constant pressure…

A: Given Cv = 20.8 J/K.mol Cp = 29.1 J/K.mol Initial temperature = 50K Final temperature = 100K Find…

Q: 04: A vertical, frictionless piston - cylinder device contains a gas at (500 KPa). The atmospheric…

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Q: What is the moving boundary work during a process with a piston-cylinder device connected to a…

A: Given:   Piston-cylinder device connected to linear spring. Air is compressed. Initial pressure, P1…

Q: The atmospheric lapse rate on a particular day is constant in the lower part of the atmosphere. At…

A: Given: To = 15oC = 288 K T = 11.5oC = 284.5 K The equation of static equilibrium is given as, dp =…

Q: True or false: Osmotic pressure can be explained by the difference in fugacities

A: It is to be mentioned whether fugacity difference explains the osmotic pressure or not.

Units and Dimensions

Dimensions are the basic concepts of the measurement of quantities. Units are the means of expressing the dimensions. For instance, an area has a dimension of L2 and a unit of m2.