At 117°C, the vapor pressure of water is approximately 2566 Pa.
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In a rice cooker, the gas law is applied through the control of pressure inside the cooker. When the water in the cooker reaches its boiling point, the pressure inside the cooker increases, allowing the rice to cook faster and more evenly. By adjusting the pressure and temperature, rice cookers can efficiently cook rice while preserving its texture and flavor.
The atmospheric pressure inside a pressure cooker can reach around 15 psi (pounds per square inch) above normal atmospheric pressure. This higher pressure increases the boiling point of water and allows for faster cooking times.
The pressure inside will be the same as what the atmospheric pressure was when the lid was closed as long as no heat is added or removed.
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.
A pressure cooker operates by trapping steam generated from boiling liquid, increasing pressure inside the cooker. The ideal gas equation, PV = nRT, can be used to estimate the behavior of the steam inside the cooker. The increase in pressure leads to higher temperature and faster cooking times due to the elevated boiling point of the liquid inside.
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.
The highest temperature reached inside a pressure cooker will depend on the pressure level set for cooking. As pressure builds up, the boiling point of water increases, allowing food to cook at higher temperatures than under normal atmospheric conditions.
Pressure Cooker= "azhutha sootadupu"
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.
The best pressure cooker, in my opinion, is the All American 921 21-1/2-Quart Pressure Cooker.