I've been working on the following problem for several hours but am not sure how to approach part (c).(adsbygoogle = window.adsbygoogle || []).push({});

Consider the insulated vessel shown here, with compartment A of volume 0.03 m3, which is empty, and separated by an insulating membrane from compartment B of volume 0.01 m3, which contains 0.15 kg of air at 25°C. The air is stirred by a fan until the membrane ruptures. The membrane is designed to rupture at a pressure of 2 MPa.

http://img375.imageshack.us/img375/6605/37jf9.jpg [Broken]

a) What is the temperature when the membrane ruptures?

b) Calculate the work done by the fan.

c) Find the pressure and temperature of the air after the membrane ruptures and the air reaches equilibrium state.

For part (c), I'm not sure which equation to apply. I'm attempting to get the temperature T first and then insert that into the gas law equation to find the pressure. Neglecting kinetic, potential and other energies, the law of conversation of energy would say that

[tex](mc \Delta_T)_{before rupture} = (mc \Delta_T)_{after rupture}[/tex].

Am I on the right track? If so, I'm confused about which values of Tfinal and Tinitial to apply to delta T on both sides. Please help me out.

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# Homework Help: Heat Transfer problem

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