A gas cylinder containing gas at a pressure of 1 atm is placed in a volume Vunder vacuum conditions and then opened. Is this process quasistatic and/or reversible?

A pneumatic lift consists of a vertical cylinder with aradius of 10.0 cm. A movable piston slides within the cylinder atits upper end and supports a platform on which loads are placed. Anintake valve allows compressed air from a tank to enter the cylinder,and an exhaust valve allows air to be removed from the cylinder. Ineither case the rate of air transfer is sufficiently low that the temperaturein the cylinder remains constant. When neither valve is activated,the cylinder is airtight. The piston and platform together have a massof 50.0 kg, the temperature is 20.0C, and the pressure outside thecylinder is 1.00 atm. There is 1.00 mol of air in the cylinder and no load on the platform. What is the height h between the bottom of the piston and the bottom of the cylinder?

An ideal gas sample expands to twice its original volume of 1 m3 in a quasi-static process for which P = αV2 with α = 5 atm / m6, as shown in the figure. Determine the work of expansion of the gas; Express the result in kJ. (1 atm = 105 Pa)

Each cylinder in a four-cylinder car engine has a bore diameter of 32 mm and the stroke for each piston is 105 mm. Calculate the cubic capacity of the engine in cm3 ; and calculate the clearance volume per cylinder for a compression ratio, r, of 5.25.