- #1
Sara1
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Homework Statement
An insulated piston-cylinder device contains 5 kg of water at 100oC with a quarter of the mass is vapor. The water is compressed reversibly to 900 kPa. Find the work done during this process. Let the ambient temperature to be 27oC.
Homework Equations
I can use the energy balance equation
The Attempt at a Solution
I am not sure how to continue and find the work of an irreversible process. What equation shall i take to find the work in a piston device?