Yourself. po
1. Determine the final air pressure, P2, in the container given the following
information:
A volume of air is reduced in size from 20 ft3 to 10 ft3, as shown in figure 20.
The given information is as follows:
P, = 0 psig (14.7 psia) P2 = ?
V = 20 ft3
V, = 10 ft

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

The force on a cutting tool are 2600n vertically downward and 2100 horizontal. determine the resultant force acting on the tool and the angle at which it acts.

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.