Helium is now compressed in a polytropic process

Assignment Help Mechanical Engineering
Reference no: EM13707464

A piston-cylinder device contains helium gas initially at 145 kPa, 20 degrees C, and 0.5 m^3. The helium is now compressed in a polytropic process (PV^n = constant) to 390 kPa and 140 degrees C. Determine the heat loss or gain during this process.

Reference no: EM13707464

Questions Cloud

A piston-cylinder assembly contains ammonia initially : A piston-cylinder assembly contains Ammonia initially at a pressure p = 500 kPa and specific volume v = 0.24533 m^3/kg (state 1). Expansion occurs to a state where the pressure is 150 kPa (state 2). During the process the pressure and specific volume..
Force on piston is proportional to cylinder volume squared : A cylinder fitted with a piston containing 1kg of Refrigerant 134a at 20C and 90% vapor quality is attached to a line flowing Refrigerant 134a. The total force on the piston is proportional to the cylinder volume squared.
What is amount of air mass that passes through wind turbine : What is the amount of air mass that passes through a wind turbine swpet area per minute if the turbine has 42m long blades and the air flux is 8kg/m^2s ?
Cracking the code of life : The first two segments of "Cracking The Code of Life" provide a good background for understanding this particular disease. Watch them if you are interested.
Helium is now compressed in a polytropic process : A piston-cylinder device contains helium gas initially at 145 kPa, 20 degrees C, and 0.5 m^3. The helium is now compressed in a polytropic process (PV^n = constant) to 390 kPa and 140 degrees C. Determine the heat loss or gain during this process.
What is the flow rate through the system in units : A hydraulic system is powered by a 9 kw motor and operates at 11 MPa. Assuming no losses, what is the flow rate through the system in units of m³/s?
Determine the initial and final temperature : A piston cylinder assembly which initially has a volume of 1m^3 is filled with .7 kg of air. The pressure on the air is always maintained at 1.2 bars. Heat transfer is allowed to take place until the volume is 60 percent of the initial value. You may..
Develop a website for a new company that sells books : Review courses available that are needed for graduation and review course times to pick a schedule where classes each meet at different times (to avoid time conflicts)
The concentration of greenhouse gases in the atmosphere : The concentration of greenhouse gases in the atmosphere is believed to have increased because of the burning of fossil fuels, the eruption of volcanoes, and deforestation, among other things. What is an increase in atmospheric greenhouse gases ..

Reviews

Write a Review

Mechanical Engineering Questions & Answers

  Calculate the lattice parameter of aluminum

Write a complete program consisting of a Main Program and Subprogram (you choose which type, but there should be only one) that fulfills the following requirements.

  Determine the power required to maintain the clean rooms

at steady state a refrigeration cycle maintains a clean room at 55degf by removing energy entering the rom by heat

  A 3 cubic meter tank contains propane at 05 mpa and 3degc

a 3 cubic meter tank contains propane at 0.5 mpa and 3degc. gas leaks out of the tank. at the time of detection of leak

  Determine the magnitude of the boats acceleration

Starting from rest the motorboat travels around the circular path,P = 50m , at a speed v=(0.8t)m/s, where t is in seconds. Determine the magnitude of the boat's velocity when it has traveled 40m. Determine the magnitude of the boat's acceleration ..

  A force of 3 n stretches a spring by 1 m a mass of 4 kg is

a force of 3 n stretches a spring by 1 m. a mass of 4 kg is attached to the spring. at t0 thenbspmass is pulled down a

  Determine the pressure kpa at the start and end of

six kilograms of carbon dioxide in a piston-cylinder device execute a carnot cycle consisting of the following four

  A mining engineer plans to do hydraulic mining with a

a mining engineer plans to do hydraulic mining with a high-speedjet of water. a lake is located h300 m above the mine

  Compute the value of the corrosion potential how long do

lead experiences corrosion in an acid solution according to the following reaction pb 2h rightarrow pb2 h2 the rates

  Determine the speed of the satellite as it approaches b on

to place a communications satellite into a geosynchronous orbit at an altitude of 22240 mi above the surface of the

  Determine how long it will take for the system to rise 10 m

an elevator is created by using a hose hanging from the top of a 10 m building. the hose is diverted into 4 jets at the

  Would it be a possible to use a normal domestic

would it be a possible to use a normal domestic refrigerator as a heat source for a small hot tub or whirlpool? if so

  Find pressure-specific volume and specific enthalpy

Given water h=3227 KJ/Kg Temperature 400C Find specific volume, pressure, and specific internal energy. Given R-134a T=15F quality x =0.6 Find pressure, specific volume, specific enthalpy. Given Water P=4Mpa U=3000 KJ/Kg Find Temperature, and specifi..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd