Will a glass of water left in the fridge evaporate? A commenter suggested that a glass of water left in a fridge would evaporate.
I couldn't tell if this is true. I don't want to do the experiment since it would take too long; so I thought instead I'd ask here.
Assume 1 cup (237 ml) of water in a typical cylindrical glass; the fridge is at 4C. Assume the fridge is never opened for the duration of this week. For "extra credit"*, assume the fridge has 640 lt volume, resides in a room at 25C and 50% humidity, and is opened 5 times a day.
*: No, it's not a homework question, hold your close flags.
 A: Evaporation depends on vapor pressure of environment. If vapor pressure inside the fridge is lower than saturated pressure of water at $4^\circ C$, then the water will vaporize.
A: Yes, of course it will. You probably already know this.


*

*If you leave food uncovered for too long in the fridge, it dries out. If you have never noticed this for yourself, you are too hygienic and well-organized. Loosen up.

*If you leave ice cubes uncovered in the freezer for a few months, they dry out, leaving limescale. If you have never noticed this for yourself, drink less whisky.
And yes, it is partly to do with different temperatures in different parts of the fridge. The cooling coils (and the fridge wall next to the cooling coils) will be either (when not cooling) at the same temperature as the rest of the fridge or (when cooling) much, much colder. So there will be a constant migration of moisture from everywhere else onto the coils.
A: THE THERMAL SHIFT OF OPENING N CLOSING THE FRIDGE IS DIRECTLY PROPORTIONAL TO THE EVAPORATION OF WATER FROM FOOD IN THE FRIDGE..
SECOND IS THE AUTO TEMPERATURE CONTROL CONTRIBUTES TO SHIFT TEMPERATURES IN THE FOOD THAT ALLOWS WATER BREAK UP AND HENCE THE VAPOUR..
I HAVE ALWAYS KEPT PICKLES OPEN IN THE FRIDGE TO GET THEM MORE STRONG TASTING... AND THICKER TEXTURE..
