- #1

marcas3

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## Homework Statement

Initially, 2 kg of water is at 250 Celsius and it exists as a saturated liquid. It is now isobarically heated until all of it is converted to saturated vapor. Find final temperature and volume.

## Homework Equations

Thermodynamic tables and the use of interpolation.

## The Attempt at a Solution

Since the process is isobaric, it is heated at a constant pressure. Next, using thermodynamic tables, the specific volume of the saturated liquid (v_f) is .001252 m^3/kg and the initial pressure is 3976.2 kPa at 250 Celsius. To find actual initial volume we just divide the specific volume by the mass (2 kg).

Trouble I am having is finding the final temperature and final specific volume (now I am looking for v_g since the water now exists as a saturated vapor). I thought about using the pressure table to find v_g and temperature but this doesn't make sense to me because then it seems the final temperature would be the same as the initial temperature, which I don't think is possible since this process is not isothermal. Please help.