1. The problem statement, all variables and given/known data A rigid container of volume 0.5 m3 contains 1.0 kg of water at 120oC (vf= 0.00106 m3/kg ,vg=0.8908 m3/kg ) v-specific volume (vf is v of saturated liquid and vg is v of saturated vapour) The state of water is (a) compressed liquid (b) saturated liquid (c) a mixture of saturated liquid and saturated vapor. (d) super-heated vapor 2. Relevant equations v = vf + x(vg- vf) x- dryness fraction 3. The attempt at a solution In order to know whether the water can exist in vapor state in the container at 120oC , i need to find the pressure? because pressure decides the boiling point. If i consider dryness fraction of zero then the volume occupied will be 0.00106 m3 right ? given that the volume of the container is 0.5 m3 certainly the water is not compressed so option (a) is ruled out. In order to rule out option (b) and (d) , i need to know the pressure right ? i don't know how to proceed. The answer given to me is (c) but i want to know how to rule out (b) and (d).