A liquid$-$vapor mixture of water is placed in a coffee maker, considered as a sealed, rigid container, with the volume of v $=1\mathrm{.}159$ m$3/$kg$,$ and the pressure of p$1=100$ kPa $($state $1).$ This container undergoes and finish heating process until the water reaches saturated vapor state at the final pressure of p$2($state $2).$ Kinetic and potential energy changes can be ignored.

What is the vapor quality x at the state $1?$