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## Homework Statement

A boiler produces wet steam at a pressure of 8.5 bar. A sample of the steam is passed through a throttling calorimeter. At the calorimeter exit, it reads 2 bar, 141 ºC. Determine the dryness fraction (quality?) of the wet steam if the process is adiabatic.

## Homework Equations

First Law : Q-W=E2-E1 (needed?)

Steam Tables

PV=RT (does it apply??)

X= (v-vf)/(vg-vf)

## The Attempt at a Solution

I am very confused as to how to use the steam table and where and when each applies. Also, I do not know where to find v, and if PV=RT applies in the superheated region.

Any help is much appreciated.