on a normal pressure (1 atm) water boils on a temperature of 100 C, but when we reduce the pressure, ebullition temperature will be also reduced (it will become less then 100) which means that they can boil more water using less energy
If you heat steam under pressure you get "superheated steam" under higher than original pressure
I guess it depends on whether it's sealed or not. If it's open to the atmosphere how can it be under pressure ? If it's sealed it could be put under (positive or negative) pressure so would be, by definition, a pressure vessel IMHO.
The injection rate is the number of injections. The injection pressure is the pressure the injection is under.
Yes, the mean effective pressure (MEP) of an automobile engine in operation can be less than atmospheric pressure, particularly in engines operating under certain conditions, such as during idling or when experiencing a vacuum in the intake manifold. This situation can occur when the engine is not generating sufficient power or when the throttle is partially closed, leading to reduced intake air pressure. However, for efficient power generation, engines typically operate at MEP values greater than atmospheric pressure during normal operation.
Initially, a minimum of 5.2 bar is needed to convert air to liquid under pressure. This pressure is for the initial process. For the final process, less than 1.7 bar is needed.
Regelation refers to melting under pressure as well as freezing under reduced pressure.
Physics is used in desalination when understanding processes like osmosis, reverse osmosis, and thermodynamics, which are fundamental to desalination technology. These processes involve the movement of water across membranes under pressure differentials and the utilization of energy for separation, making physics a critical aspect of the desalination process.
glycerin is distilled at reduced pressure because it has boiling point of 290 degree celsius under atmospheric pressure it slightly decomposes but under reduced pressure it distills unchanged
Distillation under reduced pressure allows for the separation of compounds with higher boiling points at lower temperatures, preventing thermal degradation. It also helps to increase the efficiency of the distillation process by reducing the energy required for vaporization. Additionally, reduced pressure distillation can improve the purity of the distillate by minimizing side reactions.
The carbon dioxide (CO2) in carbonated beverages is dissolved in the water under pressure and result in a bubbly fizz which is the CO2 being released as the pressure is reduced.
In vacuum drying, the material is placed in a chamber where air and moisture are removed by creating a reduced pressure environment. This helps lower the boiling point of water, allowing it to evaporate more easily from the material at lower temperatures. The reduced pressure also accelerates the drying process by promoting faster moisture removal.
When swamp plants are buried under pressure for a long time, they may eventually transform into coal through a process called coalification. This process involves the decomposition of plant matter under high pressure and temperature, resulting in the formation of coal deposits.
Plants can still grow under high atmospheric pressure, although extreme pressure levels could impact the rate and quality of growth. The high pressure could affect the plant's ability to absorb nutrients and water, leading to stunted growth or other physiological changes. However, some plants, like deep-sea species, have adaptations that allow them to thrive in high-pressure environments.
At higher altitudes, there is reduced atmospheric pressure, which leads to a lower boiling point of water. This happens because with lower pressure, it is easier for water molecules to escape into the air as vapor. Therefore, at higher altitudes, water reaches its vapor pressure (boiling point) at a lower temperature than at sea level.
Gas compresses under different pressure conditions by decreasing in volume when subjected to higher pressure. This is due to the gas particles being forced closer together, resulting in a denser and more compact arrangement. Conversely, when the pressure is reduced, the gas expands and occupies a larger volume.
The plants and animals that existed and lived millions of years ago decompose and overtime are buried under the earth, there they are under pressure. As more and more pressure is applied, they become a fossil fuel.
Nitrogen should be used with oxygen under pressure to prevent the development of decompression sickness. When breathing high-pressure oxygen for a period of time, the body accumulates excess nitrogen which can form bubbles in the blood when pressure is reduced. This can result in decompression sickness, also known as "the bends."