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What refrigerant has the lowest boiling temperatures at atmospheric pressure?
Wiki User
∙ 11y ago
R-502 has thelowestboiling temperature atatmosphericpressure. It can be boiled as low as -50 deg F before the boiling pressure goes into a vacuum.
Wiki User
∙ 11y ago
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In the Fahrenheit temperature scale what is the boiling point of water?
In atmospheric pressure (ie at sea level), water boils at 100 degrees Celsius.
Sodium Hydroxide use boiling water why?
Boiling point is described as the point at which vapor pressure is equal to atmospheric pressure. Adding sodium hydroxide into boiling water would increase the boiling point of the solution (it would be a solution if you add the NaOH into it). This is due to the addition of ionic particles. The addition of ionic particles blocks the path for water molecules to escape from the solution. Therefore, it would take longer for vapor pressure to equal atmospheric pressure. Similarly, there would be a high boiling point in lower altitudes than in higher altitudes due to the differences in atmospheric pressure. In lower altitudes, it would be harder to reach boiling point due to more atmospheric pressure. Meanwhile, at higher altitudes, it would be easier to reach boiling point due less atmospheric pressure.
Why would water boil at less than 100 degrees on top of a mountain?
The boiling point of any liquid is the temperature at which its vapor pressure becomes equal to the atmospheric pressure. So if the atmospheric pressure is lower, it will take a lower temperature to make the vapor pressure equal to that of atmospheric pressure. At hill-stations, the air is generally thinner due to the altitude and the atmospheric pressure is also lower. Here, it requires less than 100oC temperature to reach the point where the vapor pressure of water reaches that of air. So, water boils below 100oC at hill stations.
How does the boiling point of a liquid vary with pressure?
Something boils when its vapor pressure equals the atmospheric (barometric) pressure above it. When the two are equal, that defines the boiling point.Therefore, you can either boil something by heating the liquid, and thus raising its vapor pressure (vapor pressure goes up with temperature), or you can boil something by reducing the atmospheric pressure above it until it matches the vapor pressure.See the Related Questions links to the left for more information about how the boiling point of water changes with elevation and atmospheric pressure.
Pressure has an effect on boiling point because pressure affects what?
In this case pressure affects things only passively. A liquid boils when it is hot enough so that its vapor pressure equals/exceeds the external atmospheric pressure. At lower temperatures the external prsssure collapses any bubbles that might form.
Which refrigerant has the highest boiling temperatures at atmospheric pressure?
The refrigerant plays a key role in achieving vapor cycle air ... After that, and until all the water has been evaporated, the remaining boiling liquid stays at the ... of the higher temperature of boiling resulting from increased pressure.
What is the relationship of boiling point with atmospheric pressure?
The normal boiling point (also called the atmospheric boiling point or the atmospheric pressure boiling point) of a liquid is the special case in which the vapor pressure of the liquid equals the defined atmospheric pressure at sea level, atmosphere
Give two differences between evaporation and boiling?
Evaporation takes place at all temperatures but boiling at one particular temperature When saturated vapour pressure becomes equal to the atmospheric pressure boiling takes place but evaporation is not so
What refrigerants has the lowest boiling temperatures at atmospheric pressure R-12 R-22 R-134a R-502?
This is R-502 with a boiling point at -45 0C.
What is the relationship between pressure and the boiling points of liquid?
As atmospheric pressure increase so does the boiling pont, when atmos. pressure decreases so does boiling point. A liquid boils when its vapor pressure equals atmospheric pressure.
How does the boiling point different from lowland and highland?
in lowland the atmospheric pressure is higher so the boiling point will be higher,in highland atmospheric pressure is low so the boiling will be low
Defined as the point as which liquids vapor pressure equals the atmospheric pressure?
The normal boiling point(also called the atmospheric boiling point or the atmospheric pressure boiling point)is the temperature at which the vapor pressure of a liquid equals the atmospheric pressure at sea level, 1 atmosphere.The normal boiling point of water is about 100 degrees Celsius at a pressure of 1 ATM (i.e., 101.325 kPa).General Useful Information:The boiling point of a liquid is the temperature at which the vapor pressure of the liquid equals the environmental pressure, but the environmental pressure may or may not be equal to the atmospheric pressure at sea level, 1 ATM.If the surrounding environmental pressure is less than atmospheric pressure, then the boiling point is less than the normal boiling point.If the surrounding environmental pressure is greater than atmospheric pressure, then the boiling point is greater than the normal boiling point.At the boiling point, adding enough heat to the liquid will cause the liquid to vaporize (that is boil or form a gas).
As external pressure such as atmospheric pressure on liquid increases its boiling temperature?
At high pressure the boiling point is higher.
What are the two reference temperatures on the Celsius scale?
The pure water freezing point (zero degree) and its boiling point (100 degrees) at atmospheric pressure.
Do all the liquids at their boiling points have same vapour pressure?
At the same atmospheric pressure, yes. That's kind of the definition of boiling point: when the vapor pressure is the same as the atmospheric pressure.
Why rainwater evaporates when it is not 100 degrees Celsius?
Water evaporates at almost any temperature. However, at higher temperatures, the vapor pressure is higher. It is said to be boiling when the vapor pressure is equal to the atmospheric pressure.
What is the condition which occurs when the atmospheric pressure is equal to the vapour pressure?
boiling
