Yes, water can turn into vapor without being heated up if enough pressure is applied to it. This process is known as "evaporation" or "boiling." Normally, water molecules gain enough energy through heat to overcome intermolecular forces and transition from the liquid phase to the vapor phase. However, when pressure is increased, the boiling point of water also increases. Consequently, water can exist as a vapor at lower temperatures if the pressure is elevated.
The relationship between pressure and boiling point is governed by the phase diagram of a substance. In the case of water, at atmospheric pressure (approximately 1 bar or 101.3 kPa), the boiling point is 100 degrees Celsius (212 degrees Fahrenheit). However, if the pressure is increased, the boiling point of water also increases. For instance, in a pressure cooker where pressure can reach higher levels, water can boil at temperatures above 100 degrees Celsius, allowing it to turn into vapor without being heated up as much.
This principle is utilized in some cooking techniques or industrial processes where pressurized vessels are employed to raise the boiling point of water, reducing cooking times or enabling specific reactions to occur at lower temperatures.