Heat required to convert compressed water to superheated steam at 1 bar

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craglyboy
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Homework Statement


In a constant pressure process ant 1 bar determine how much heat must be added to raise the temperature of 2kg of compressed water at a temp of 50C so that it become superheated steam at a temp of 200C?

u2=2659KJ/Kg

Homework Equations


W=-P(V2-V1) Q+W=U2-U1


The Attempt at a Solution



Not really sure how to work out the volumes and struggling with how to find u1 as its compressed water.

Do i find out the volumes by attaining the specific volume and multiplying by the mass
 
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