# Thermodynamics property calculation

xzibition8612

## Homework Statement

Air has a temperature of 227 Celsius and a pressure of 1000 kPa. Determine the internal energy, quality, enthalpy, and specific volume if it exists.

## Homework Equations

A state is defined by two properties. All other properties can be derived from two independent properties.

## The Attempt at a Solution

Ok so in theory two independent properties define the state, so I should be able to do this problem. Problem is there are no formulas relating them.....I am totally lost right now. I only know the concept, but have no tools. Anyone help me pls.

Gold Member
If I had to guess, I think you are allowed to assume the air is an ideal gas, and then use the formulas for an ideal gas to figure out what you need to.

nancy_yin2001
you can get the formulas by polynomial fitting. The orginal data can be calculated from www.eThermo.us

Staff Emeritus
Homework Helper
The OP was looking for an answer 2 years ago. He either found it by now or ...

Please check the dates in the thread before posting (or necro posting) to a thread which is months, if not years, old.