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The lid is cooler than the steam (water vapor) produced by boiling the water. When the water vapor contacts that cooler surface, it condenses into liquid water.
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∙ 7y ago
alex lim
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Why Water droplets form on the under cover of a pot of warm rice?
The lid is cooler than the rice, so the water vapor in the air (within the pot) condenses on the lid.
How to change water vapor back to liquid?
If the water vapour comes in contact with a surface and is allowed to cool and condense, it will turn back to liquid. For example, if you were to boil a pot of water with a lid on top, the water vapour would rise, touch the underside of the pot lid and condense to form droplets (liquid).
What action will most likely occur after placing a lid on a very full pot of boiling water?
the pressure inside the pot will build up and pop the lid off
What happens to the particles of a gas when if condense to a liquid?
Think what happens if youplace a glass lid over a pan of boiling water. You will see liquid form on the underside of the lid. Instead of escaping from the closed pan, the water vapor formed from boiling hits the cooler lid and forms liquid drops through condensation. Energy is transferred as heat from gas particles to the lid. The gas particles no longer have enough energy to overcome the attractive forces between them, so they go into the liquid state.
In a pressure cooker a lid is screwed tightly onto a pot so that the air pressure in the pot is increased What effect if any will this have on the boiling point of water in the pot?
THe boiling point will be raised
Why Water droplets form on the under cover of a pot of warm rice?
The lid is cooler than the rice, so the water vapor in the air (within the pot) condenses on the lid.
How can colourless the coloured water?
Boil it with a cup and a lid on. Boil it for 10 minutes and open the lid. The water droplets under the lid will be colourless
A pot of water on a hot stove begins to boil rapidly a glass lid is placed on the pot water droplets begin forming on the inside of the lid what happened?
Condensation. The air on the outside of the pan will be cooler than the air inside the pan leading to the lid being cooler (maybe only slightly) than the steam inside the pan. When the steam hits the cooler lid it will cool down and condense to form the water droplets.
When making spaghetti sauce simmer with lid on?
It is better to simmer with the lid off. The purpose of simmering the sauce is to reduce it, or to boil some of the water out of it so that the flavors in the remaining sauce are more concentrated. If you leave the lid on, then droplets of water will form on the underside of the lid and will fall back into your sauce, defeating the purpose of simmering for a long time.
How to change water vapor back to liquid?
If the water vapour comes in contact with a surface and is allowed to cool and condense, it will turn back to liquid. For example, if you were to boil a pot of water with a lid on top, the water vapour would rise, touch the underside of the pot lid and condense to form droplets (liquid).
What is happening when boiling vegetables on a stove and the lid pops up?
air is escaping. boiling veg in water causes air bubbles to be formed, which pressurize the lid up. Jimmy Neutron
What happens to a liquid to a gas?
Think what happens if you place a glass lid over a pan of boiling water. You will see liquid form on the underside of the lid. Instead of escaping from the closed pan, the water vapor formed from boiling hits the cooler lid and forms liquid drops through condensation. Energy is transferred as heat from gas particles to the lid. The gas particles no longer have enough energy to overcome the attractive forces between them, so they go into the liquid state.
Is the boiling temperature higher or lower when you use a lid?
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.
Does boiling water evaporate faster with or without lid?
Water will evaporate faster with alid on the pan, this is simple rule of kinetic energy
Why does the lid fly off a boiling container?
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.
What action will most likely occur after placing a lid on a very full pot of boiling water?
the pressure inside the pot will build up and pop the lid off
What do you need for canning and perserving?
Glass container with lid like peanut butter jar and boiling hot water
