The heat would stay in the pot and if you don't watch the boiling water it could over-boil. Other than that, nothing would really happen.
Yes, boiling water with the lid on can increase efficiency and speed up the boiling process by trapping heat and preventing heat loss.
If the lid is tight enough to raise the pressure in the pan (as in a pressure cooker), the boiling temperature will be higher. However, if the lid just sits loosely on top, it will make the water boil sooner because not as much heat is lost and the water heats up faster.
Water will evaporate faster with alid on the pan, this is simple rule of kinetic energy
Boiling water with the lid on will make it boil faster because it traps the heat and steam, increasing the temperature inside the pot.
The water may not be boiling because it has not reached its boiling point yet. Boiling occurs when the water reaches a temperature of 212 degrees Fahrenheit (100 degrees Celsius) at sea level. If the water is not boiling, it may not have reached this temperature or there may be other factors preventing it from boiling, such as insufficient heat or a lid on the pot trapping steam.
Yes, boiling water with the lid on can increase efficiency and speed up the boiling process by trapping heat and preventing heat loss.
air is escaping. boiling veg in water causes air bubbles to be formed, which pressurize the lid up. Jimmy Neutron
If the lid is tight enough to raise the pressure in the pan (as in a pressure cooker), the boiling temperature will be higher. However, if the lid just sits loosely on top, it will make the water boil sooner because not as much heat is lost and the water heats up faster.
Water will evaporate faster with alid on the pan, this is simple rule of kinetic energy
Boiling water with the lid on will make it boil faster because it traps the heat and steam, increasing the temperature inside the pot.
When water is boiled, it evaporates and forms steam. When the steam comes into contact with a cooler lid, it condenses back into liquid water droplets due to the drop in temperature. This is similar to how dew forms on cool surfaces in the morning.
Yes, water boils faster with a lid on the pot because the lid helps to trap heat and steam, increasing the temperature inside the pot and speeding up the boiling process.
The water may not be boiling because it has not reached its boiling point yet. Boiling occurs when the water reaches a temperature of 212 degrees Fahrenheit (100 degrees Celsius) at sea level. If the water is not boiling, it may not have reached this temperature or there may be other factors preventing it from boiling, such as insufficient heat or a lid on the pot trapping steam.
As some of the water passed its temperature of vaporization and turned to steam, steam pressure inside the cup would steadily increase, and would eventually exceed the structural integrity of the cup, whereupon the experiment would suddenly and catastrophically metamorphose into a dangerous mess.
The lid will come off because as the water heats up it expands and turns to steam. This pushes the air inside upwards so forcing the lid to rise.
Not much will happen if you put a glass bottle containing teaspoonful of water in it in the sun with its lid closed. It might evaporate.
Glass container with lid like peanut butter jar and boiling hot water