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Anonymous users2024-01-24(1) The pressure cooker is sealed, and the water vapor formed by the vaporization of the water in the pot cannot run out, so that the air pressure on the water surface in the pot increases and the boiling point of the water increases;
2) The maximum temperature is about 116;
3) Increase the quality of the pressure limiting valve
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Anonymous users2024-01-231) The pressure cooker is sealed, and the water vapor formed by the vaporization of the water in the pot cannot run out, so that the air pressure on the water surface in the pot increases (greater than 1 standard atmosphere), and the boiling point of the water increases (higher than 100);
2) The pressure generated by the safety valve on the air outlet:
F=G=mg=84×10-3
kg×10N/kg=
s=12mm2
The pressure generated by the M2 safety valve on the air outlet: p Fs
Pa air pressure in the pot:
p′=1×105
Pa+Pa=
Pa derives the temperature inside the pressure cooker from the boiling point-pressure graph:
t=116℃．
3) The mass of the pressure limiting valve can be increased to increase the air pressure in the pot and increase the boiling point Answer: (1) The pressure cooker is sealed, and the water vapor formed by the vaporization of the water in the pot cannot run out, so that the air pressure on the water surface in the pot increases and the boiling point of the water increases;
2) The maximum temperature is about 116;
3) Increase the quality of the pressure limiting valve
1. The air pressure increases, and the boiling point increases; The force changes the state of motion of an object; Internal energy is converted into mechanical energy, etc. 2. When the temperature reaches the melting point of the molten sheet, the gas is released, the pressure is reduced, and the explosion is avoided >>>More
Once the safety valve of the pressure cooker fails, the air outlet hole will be blocked, the gas pressure in the pot will be too large, and the boiling point will also rise, when the temperature in the pot reaches the melting point of the fusible sheet, and then continue to heat the fusible sheet and begin to melt, and the gas in the pot will be sprayed out from the air vent hole, so that the air pressure in the pot will be reduced, so as to prevent explosion accidents.
According to mg=ps, derive p=mgs, listed:
The pressure is calculated as 80*. That is, Wampa. >>>More
The pressure cooker is a common cookware in the home kitchen, and the reason why food is easy to be cooked is (it can heat food to more than 100) The function of the fusible sheet on the pressure cooker is (when the pressure cooker hole is blocked, the gas pressure in the pot is too large, and the temperature also rises, and when the temperature reaches the melting point of the fusible, the fusible sheet melts and deflates, so that the pressure cooker will not explode).
B enlarged. Pressure.
Improve. Liquid. >>>More