In the absence of compressedliquid data the specific volume
     In the absence of compressed-liquid data, the specific volume of a compressed liquid is best approximated by:  v_r at the given temperature  v_f at the given pressure  v_f at the given temperature and pressure  ideal-gas law for given p and T  Reduced Pressure is defined as:  Pressure divided by saturation pressure  Pressure divided by critical pressure  Pressure divided by initial pressure  Pressure divided by atmospheric pressure 
  
  Solution
5. a: In the absence of compressed liquid tables, a general rule of thumb for v & u properties is to treat a compressed liquid as a saturated liquid at the given temperature.
6.b : Pressure divided by crtical pressure

