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Normally you have a pressure of approx. 2 bar (2kPa) in a pressure cooker.
At this pressure the boiling point of water is 120 0C (393 K) or 247 F
See the Related Questions to the left for more information about how pressure affects the boiling point of water.
Wiki User
∙ 16y ago
Wiki User
∙ 15y ago* The boiling point of a liquid is dependent on the external pressure (the pressure above the liquid). Let's examine water. The boiling point of water at sea level (1 atmosphere) is 100 degrees Celsius. That is to say, that 1 atmosphere worth of pressure is pushing down on the surface of the water. The water molecules must have enough energy not to just break the H-bonds between each other in the liquid, but must also have enough energy to push out into the air above them. If you increase the pressure (by putting the water into a pressure cooker where the steam cannot escape into the normal air pressure) then you are requiring the water to need even more energy to push out of the liquid into the surrounding air to become a gas. So the boiling point temperature would be higher--you'd need more energy added to escape the liquid.
Wiki User
∙ 11y agoIf the pressure cooker is closed, so that the actual pressure within the cooker is greater than atmospheric pressure, the boiling point of the water within the cooker will be more than 100 Celsius.
Wiki User
∙ 8y agoThe boiling point of water in a pressure cooker is approx. 120 0 oC.
Wiki User
∙ 6y agoThe boiling point in a pressure cooker is higher than in a standard container.
Wiki User
∙ 6y agoWhen the pressure increase the boiling point also increase.
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Does a pressure cooker raise the boiling point?
Yes, it is true.
Why the boiling point of water in pressure cooker high?
A pressure cooker minimizes the escape of fluids or air. The build-up of air and fluid increases the pressure inside the cooker, which also increases the boiling point. An open kettle allows the fluid and air to escape, heat is lost thus cooking time is longer.
What is the effect of dissolving salt in water on boiling point of water?
why do we use pressure cooker at hill stations for cooking food
What affect does ambient pressure have on the boiling point temperature of a liquid?
No, the external environment does not affect the boiling point of a liquid inside a pressure cooker. Since the liquid is sealed away from the air, it is not affected by ambient air pressure or humidity.
What is the effect of decreased pressure on the boiling and freezing point?
As pressure decreases, the boiling point of water will also decrease. Backpackers camping in the high mountains are familiar with the phenomena when they get water boiling - and find that it is still only lukewarm because the atmospheric pressure at their high altitude is so low.
Does a pressure cooker raise the boiling point?
Yes, it is true.
Why the boiling point of water in pressure cooker high?
A pressure cooker minimizes the escape of fluids or air. The build-up of air and fluid increases the pressure inside the cooker, which also increases the boiling point. An open kettle allows the fluid and air to escape, heat is lost thus cooking time is longer.
Food in a pressure cooker is cooked faster because of the?
The higher pressure raises the boiling point of water.
What would be the boiling point of in a pressure cooker of water at 1.3 ATM?
190 degress
Why doeswater boil at a low boiling point on top of a mountain and a higher boiling point in a pressure cooker?
This is because the boiling point of any fluid increases as the pressure acting on it is increased. Atmospheric pressure on top of a mountain is lower than normal atmospheric pressure. Conversely, by not allowing steam to escape, the pressure above the water in a pressure cooker is allowed to build up to a much higher level.
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.
How can you change the boiling point of liquid?
you can adjust the pressure. for example water boils at a higher temperature in a pressure cooker.
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
What gas law could apply to how pressure cooker works?
Boiling point = temperature where the vapour pressure is equal to the pressure of the atmosphere above the liquid. When you have a pressure cooker, the pressure above the water is higher than atmospheric pressure, therefore the boiling point of water is elevated to above the boiling point in an open pot. The water temperature exceeds 100 degrees Celsius, and thus the cooking process is accelerated.
Is there a relationship between boiling and pressure?
Yes, there is. Higher pressure increases the boiling point and lower pressure decreases it. That is why a pressure cooker works and why water boils at lower temperatures in high altitudes.
How you can measure the boiling point or melting point of carbon?
At high pressure and an inert atmosphere.
What is the effect of dissolving salt in water on boiling point of water?
why do we use pressure cooker at hill stations for cooking food
