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Why does the water in the pressure cooker boils even if the flame is put off?
The temperature remains high for a while.
Water boils at 120 in a pressure cooker why?
Water boils at 120°C in a pressure cooker because the increased pressure inside the cooker raises the boiling point of water. Normally, water boils at 100°C at standard atmospheric pressure, but the pressure cooker traps steam, increasing the pressure and allowing water to reach higher temperatures before boiling. This higher temperature cooks food faster and more efficiently.
The temperature in which water boils inside a pressure cooker is lower than in an open pan at sea level?
it doesnt it just boils it faster.
At what degrees the water boils in a pressure cooker?
Above 100 deg C The extent to which the temperature is higher than 100 deg C depends on the pressure inside the cooker and that is controlled by the weights on the cooker valve.
If the pressure cooker is fully isolated than does water boils?
If it is fully isolated then, presumably, there is no heat reaching it and so the water in it cannot boil.
How does a pressure cooker demonstrate the effect of air pressure on waters boiling point?
Vapour rom the boiling water is not allowed to escape and so the pressure above the water increases. This raises the temperature at which the water inside the cooker boils.
What happens to liquid when it boils?
imagine that you are heating a pan of tap water on a cooker and taking the temperature of the water with a thermometer every two minutes until after the water has boiled
How does a rice cooker works?
when the water is all gone, the rice is done. water boils at 212 degrees F, so when the temperature rises above that, then the cooker knows the rice is done. let it rest, covered, for a bit - the residual temperature will ensure it's all cooked nicely.
In a pressure cooker water boils at a temperature?
Higher than 100°C, typically around 121°C at 1 bar pressure. The higher pressure inside a pressure cooker raises the boiling point of water, allowing food to cook faster.
If you changed the water to water vapor in a pressure cooker what volume would the water vapor occupy?
Water vapor occupies about 1700 times more volume than liquid water. So, if you changed all the water in a pressure cooker to water vapor, the volume occupied by the water vapor would be about 1700 times the volume of the liquid water.
How do pressure cookers work and are they really much quicker?
Pressure cookers work because when you increase pressure, water boils at a higher temperature. Water normally boils at 212 degrees F. Under 15psi of pressure (standard in a pressure cooker), it boils at 257 degrees F. Since your food is cooking at a higher temperature, it will cook faster.
What happens to liquid water when it boils?
When liquid water boils, it changes state from a liquid to a gas. This process involves the water molecules gaining enough energy to overcome the intermolecular forces holding them together, resulting in the formation of water vapor.
