Determine the temperature at the end of the process and the

Reference no: EM13563727

Air undergoes a polytropic expansion process in a piston-cylinder assembly from 75 psia and 300 F to 15 psia. Employing the ideal gas model with constant specific heat ratio k, determine the temperature at the end of the process and the amounts of work and the heat transfer per unit mass in Btu/lb if

a) n=1.3

b) n=k

with k=1.4 and R=0.0686 Btu/lbR

Reference no: EM13563727

Questions Cloud

What are the problems associated with this method in terms : In bridge widening projects, the method of stitching is normally employed for connecting existing deck to the new deck. What are the problems associated with this method in terms of shrinkage of concrete?

Determine the values of the stress and the change in the : A rectangular steel plate with thickness t=0.625 inches is subjected to normal stresses sigma x and sigma y.The strain in the x direction is known to be 0.00065 and the strain in the y direction is known to be 0.0004

Determine the stresses acting on an element oriented at an : Using the stress transformation equations only,given a stress state where sigma x=105 MPa,sigma y=75 MPa and tau xy=25 MPa, determine the stresses acting on an element oriented at an angle 40 degrees from the x axis.

Find the speed of a rider at the bottom of the track : One of the new events in the 2002 Winter Olympics was thesport of skeleton. In the absence of non conservative forces, such a frictionand air resistance, what would be the speed of a rider at the bottom of the track

Determine the temperature at the end of the process and the : Air undergoes a polytropic expansion process in a piston-cylinder assembly from 75 psia and 300 F to 15 psia. Employing the ideal gas model with constant specific heat ratio k

What is the easiest way to solve for those 2 unknowns : Are either of the Ax or Jx forces relevant to finding the tension between H and J? If so, what is the easiest way to solve for those 2 unknowns?

Estimate how large is the resistance : A 5-A current is maintained in a simple circuit that consistsof a resistor between the terminals of an idealbattery. how large is the resistance

Find the speed of the golf ball just after impact : High Speed stroboscopic photographs show that the head of a200 g golf club is traveling at 55 m/s just before it strikes a46g golf ball at rest on a tee. Find the speed of the golf ball just after impact

Determine the distance required for the police officer : Car A is traveling at a constant speed va= 130 km/h at a location where the speed limit is 100 km/h. The police officer in car P observes this speed via radar. At the moment when A passes P, the police car begines to accelerate at the constant rate o..

User Account

All Pages