Any time you drop the external temperature, it is going to make it easier for compounds to boil since the atmosphere is no longer exerting as much force down on the liquid. However, whether one or both compounds boils at that temperature depends less on the difference between their two boiling points and more on what their vapor pressure is at whatever temperature they are at.
Compounds boil when their vapor pressure (the pressure of the molecules that naturally escape the solid or liquid because they have more energy) is the same as the external pressure. The vapor pressure of a substance depends only on temperature, which is why the point at which something boils is tied to temperature.
Take water for instance. Water boils at 100 degrees C at sea level because at that temperature its vapor pressure is 1 ATM (760 mm Hg). At room temperature (25 degrees C) water has a vapor pressure of around 22 mm Hg. Since its vapor pressure at 25 degrees C exceeds 10 mm Hg, it would indeed boil at that pressure.
Now if a liquid had a boiling point that was 50 degrees below water's, it would presumably boil at that temperature as well (although not necessarily... depends on other factors). If a liquid had a boiling point that was 50 degrees higher than water, then there is a decent chance it may not boil, but you would really need info on its vapor pressure at room temperature to know.
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
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).
The boiling point of ammonia at atmospheric pressure is -33.34oC.
The temperature at which the vapor pressure of the liquid equals the atmospheric pressure is called THE BOILING POINT.
Atmospheric pressure exerts pressure on the molecules of the liquid, confining them. In order to boil, the electrons must be excited, but must become hotter to overcome the pressure of the atmosphere. Therefore, pressure makes a liquid boil at a higher temperature. With a solid, the molecules are already compact together and have to be melted before they can be boiled. This does not require excitation of electrons, but it does require movement of electrons. Once the solid is melted, pressure will make it harder for the electrons to become excited.
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
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.
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
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).
At high pressure the boiling point is higher.
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.
boiling
The boiling point of ammonia at atmospheric pressure is -33.34oC.
because otherwise the measurement will be different. This is because the boiling point of thingss is changes at a low atmospheric pressure.
as the evaporation occurs under the atmospheric pressure that is492degr and the boiling point occurs above the atmospheric pressure different liquids have different boiling points just the boiling point of water is 100deg c
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.
The higher the pressure, the higher the boiling point. Boiling occurs when the atmospheric pressure equals the vapor pressure. So, at higher altitudes where the atmospheric pressure is lower, the vapor pressure is also lower which in turn creates a lower boiling point which causes foods to have to cook longer.