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Is it possible to boil water by passing steam at atmospheric pressure?
Wiki User
∙ 12y ago
If the steam is superheated, then yes - it can be used to boil water. If the steam is at the saturation point however, the most you could achieve would be to heat the liquid water to the boiling point while condensing some of the steam.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoIt is not necessary for water to boil to form steam. For example ocean water converts to steam without boiling due to sun rays.
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What crushes a tightly corked tin can containing steam when cold water is poured on it?
atmospheric pressure
Why is it necessary to enclose the nuclear reactor at low pressure?
There is some sort of confusion here. There are two types of water moderated/cooled reactors: boiling water and pressurized water.The boiling water reactor is at normal atmospheric pressure and the water in the reactor boils, producing steam directly.The pressurized water reactor is at elevated pressure to prevent the water from boiling. A heat exchanger/steam generator is used to produce steam indirectly.Other types of reactor (e.g. liquid metal, gas cooled, organic, aqueous homogeneous) also do not operate at pressures below atmospheric.
What is the difference between steam and water vapor?
The Steam and Vapor are the same thing i.e. Water in its gaseous state. However Steam is formed by Forced Boiling and is at a pressure greater then the atmospheric pressure as used in a Steam Engine. Water Vapour is free conversion of Water from Liquid to Gaseous Stage thru evaporation. It is in approximate equilibrium with atmospheric pressure Steam is formed by by raising the Temperature (giving heat energy) of water above its Boiling Point i.e. 100 deg Celsius whereas evaporation of water (from water bodies) may occur at temperature way below the boiling point i.e. 30 deg Celsius. Drying of washed clothes is an example
What are the differences between gas and steam?
Steam is the gaseous form of water, but it really can only be considered to be fully gaseous when it is in a dry state, as at temperatures below the dry saturated steam line, it will contain droplets of water. Thus at atmospheric pressure it needs to be above 100 celsius to be dry, the required temperature for dryness rises with pressure. The Critical point for steam is at 374 celsius and 220 bar pressure, above this temperature it is supercritical and cannot be liquefied by any further increase in pressure. Thus in summary, steam above the boiling point at a particular pressure behaves as a gas, and above 374 celsius it is a gas whatever the pressure. Most gases like oxygen and nitrogen have liquid phases at much lower temperatures, ie well below any normal atmospheric condition experienced even in extreme low weather conditions, so we regard them as always gaseous, but actually they also have liquid/gaseous interface conditions, we just don't experience them in practice except in very low temperature work. In popular terminology 'steam' is what you see rising above the surface of hot water or from the spout of a kettle, but the fact that it is visible is due to the presence of water droplets and in this condition it is not gaseous steam as described above.
How much steam pressure would a five inches diameter by twelve inches long with six inches of water in it?
The steam pressure (assuming this is a closed container) will be entirely dependent on the temperature. Look up steam tables to get the pressure of saturated steam at various temperatures.
How do you calculate 25 bar steam condenstate pressure?
If the steam pressure is 25 bars the condensate pressure is at most 25 bars. Typically it is slightly less due to friction of the fluid passing through the steam traps. As the condensate approaches the condensate tank, where it is normally vented to atmosphere, the pressure decreases in the system to near atmospheric.
What exerted pressure on the piston in newcomen's steam engine cause it to move?
Steam pressure pushes the piston up. Atmospheric Pressure pushes the piston down.
What crushes a tightly corked tin can containing steam when cold water is poured on it?
atmospheric pressure
What is the temperature of dry saturated steam at 510psig?
It will vary slightly with changes in atmospheric pressure, but is approximately 472ºF.
What is the steps for crushing can in cold water?
You have to fill the can with steam and then seal it closed. when you then put the can in cold water the steam will condense into water and the can will be crushed by atmospheric pressure.
Can steam ever be hotter than 100 degrees Celsius?
Yes, but not at atmospheric pressure (which is the pressure of your kitchen). Steam can be hotter than 100 degrees celsius under pressures higher than this.
What temperature does water boil and evaporates into steam?
boiling point is a property which depends upon the atmospheric pressure. when vapour pressure of water is equal to external is called its boiling point.. if pressure is equal to atmospheric pressure ,boiling point is 100 degree celcius.
What is marcet boilers?
The Marcet Boiler is used to investigate the relationship between the pressure and temperature of saturated steam in equilibrium with water at all pressure levels between the atmospheric pressure and 1100 kPa.
What temperature does water turn to steam?
At normal atmospheric pressure, it is 100 deg C. However, water will evaporate at a much lower temperature.
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.
What does the term steam powered mean?
Steam powered literally means powered by steam. In 1712 Thomas Newcomen developed the first steam engine in which steam is let into a cylinder, then condensed, the resulting vacuum pulling the piston into the cylinder. James Watt improved on the design by adding a separate condenser. Richard Trevithick pioneered high pressure steam, where steam under pressure forces the piston up the cylinder rather than relying on atmospheric pressure to push it into the cylinder as in Newcomen's engines. Sir Charles Parsons brought steam power into the modern era with his invention of the steam turbine in 1884.
When did thomas newcomen invented steam engine?
1712 it was known as the "Atmospheric Steam Engine".
