Determine the entropy change of the nitrogen during process

Assignment Help Mechanical Engineering

Reference no: EM13714381

A. 0.75 kg of nitrogen is compressed in a cylinder polytropically (n = 1.3). The initial conditions are 140 kPa & 37 C. The gas is compressed until the volume is reduced by half (50% of original). Assume constant specific heats at 300 K

Determine the entropy change of the Nitrogen during the process.

Show that the process would be isentropic if n = k = cp/cv.

Reference no: EM13714381

Questions Cloud

How long will it keep before its activity is reduced : A 154.7 mCi sample of a radioactive isotope is purchased by a medical supply house. If the sample has a half-life of 14 days, How long will it keep before its activity is reduced

Determine the minimum possible final temperature of the gas : Air at 900 kPa and 300 C is expanded adiabatically in a closed system to 100 kPa. Assume constant specific heats. Also complete the problem assuming Variable specific Heats. Determine the minimum possible final temperature of the gas (isentropic case..

With what acceleration does the bag go down the slide : A child leaves her book bag on a slide. The bag, which is at the top of the slide, starts from rest and reaches the bottom in 1.44 s. With what acceleration does the bag go down the slide

An irreversible heat pump is designed to remove heat : An irreversible heat pump is designed to remove heat at 7 C from the atmosphere and supply 43,200 kJ/h to an industrial process at 420 K . The COP of the actual heat pump is 60% of that of an internally reversible heat pump operating between the same..

Determine the entropy change of the nitrogen during process : A. 0.75 kg of nitrogen is compressed in a cylinder polytropically (n = 1.3). The initial conditions are 140 kPa & 37 C. The gas is compressed until the volume is reduced by half (50% of original). Assume constant specific heats at 300 K

Find the tension in the rope : If the coefficient of kinetic friction between the sofa and the ramp is 0.530, and the sofa has an acceleration of 0.800 m/s2, find the tension in the rope

Determine how much current is required : A 0.49 m-long solenoid consisting of 1000 turns is used to generate a magnetic field 0.35 T. How much current is required

Power plant generates steam from coal burning : A power plant generates steam from coal burning which burns at 3,000oF and produces about 13,000 BTU per pound. The steam is put into a poorly insulated turbine which allows 2,000 BTU per pound of coal to escape to the atmosphere at 90oF. Knowing the..

Find the maximum shear stress : Find the maximum shear stress in a 5 1/2 in-diameter circular saw blade if it runs idle at 5000 rev/min. The saw is 14 guage(0.0747 in) steel and is used on a 5/8 in-diameter. The thickness is uniform. What is the maximum radial component of stress?

User Account

All Pages