Thursday
April 17, 2014

Homework Help: physics

Posted by jody on Monday, June 18, 2007 at 2:20pm.

I have tried the ideal gas law to find the temp and Pressure so that i could then find the work but i am not getting the right answer in the end. any suggestions?

3.1 One kilogram of air in a piston-cylinder device undegoes a thermodynamic cycle composed of the following reversible processes: 1 to 2 the air at 2.4 bar and 250 K is expanded isothermally to 1.2 bar; 2 to 3 the air is then compressed adiabatically back to its initial volume; 3 to 1 the air is finally cooled at constant volume back to its initial state. Account for variable
specific heats.

c) Calculated the work (ans 57.3)

Ideal Gas Law = PV=nRT

sorry, that's all I can do. Make sure you're plugging all the information in correctly and don't round too soon.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - Which of the following desceriptions about ideal gas is/are correct? 1...
sara - In a constant-volume process, 211 J of energy is transferred by heat to 1...
sara - In a constant-volume process, 211 J of energy is transferred by heat to 1...
Physics - is it right that ideal gas only obey the boyles law under high temp ...
Physics - is that right ideal gas only obey the boyles law under high temp and ...
chemistry - 4. Use the pressure of the butane gas (your answer from question #3 ...
Physics - An ideal monatomic gas expands isothermally from 0.590 m3 to 1.25 m3 ...
science - Helium has the lowest boiling point of the elements. The slightest ...
science - Helium has the lowest boiling point of the elements. The slightest ...
physics- pressure/gas - Suppose 2500 J of heat are added to 4.1 mol of argon gas...

Search
Members