The vapor pressure of the water is lowered whenever a solute is added to a solvent because there are fewer solvent particles on the surface to evaporate. The diagram above shows that the vapor pressure of the solution is lower than that of the pure solvent, Therefore, the freezing point is also lowered.
Watch for signs of cervical dilation if you are near the end of your pregnancy. This indicates that you are in labor, and it's time to talk with your doctor or midwife. As the baby's head begins to press down on the opening of the uterus, the cervix will start to thin out and open.
Stage 1: Early labor and active labor. The first stage of labor occurs when the cervix opens (dilates) and thins out (effaces) to allow the baby to move into the birth canal. This is the longest of the three stages of labor.It's actually divided into two phases of its own â early labor and active labor. Early labor. During early labor, your cervix will begin to dilate.his is the longest of the three stages of labor. It's actually divided into two phases of its own â early labor and active labor. Early labor. During early labor, your cervix will begin to dilate.