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When the vapor pressure of a liquid is equal to the atmospheric pressure the liquid .?
it begins to boil - Monsy
What has a higher vapor pressure water at sea level or the mountains?
water at sea level has higher vapor pressure
Why do the boiling point of water decrease on climbing up the higher altitude?
Water usually boils at 212F or 100C at sea level. As you go higher up in the atmosphere (higher altitude), the amount of atmosphere pushing down on you decreases, hence the pressure decreases. Water boils when the vapor pressure of the water equals the atmospheric pressure. Vapor pressure increases with increasing temperature, so when there is less atmospheric pressure, a smaller vapor pressure is required to get the water boiling, hence a lower boiling temperature.
What is the atmospheric pressure when a liquid is boiling at its normal boiling point?
The normal boiling point of ethanol is 78.4 degrees C and, at this temperature, the vapor pressure is 101,325 Pascals (Pa) or 760 manometric units (mm Hg), which is a pressure measurement using a millimeter of mercury.
Why cant water boil over 100 degrees?
Water boils at 100 degrees Celsius at standard atmospheric pressure because that is the temperature at which its vapor pressure equals the atmospheric pressure. If the temperature is increased beyond 100 degrees Celsius, the vapor pressure exceeds the atmospheric pressure, causing the water to evaporate rapidly but not necessarily boil.
When the vapor pressure of a liquid is equal to the atmospheric pressure the liquid .?
it begins to boil - Monsy
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.
Why does plain water boil faster then salt water?
A liquid boils when the vapor pressure of the liquid is equal to the atmospheric pressure. The presence of salt in the water reduces the vapor pressure of the water at the temperature at which plain or distilled water will boil. Since the temperature of the salt water must be higher to reach the same vapor pressure as the atmosphere, it takes longer to boil.
What is the meaning of boiling in science terms?
Actually boiling is a point where the vapour pressure of any liquid (example: water) becomes equal to the surrounding pressure.
What effect does increase water vapor have on atmospheric pressure?
it causes a decrease in atmosperic pressure A+
What has a higher vapor pressure water at sea level or the mountains?
water at sea level has higher vapor pressure
Why do the boiling point of water decrease on climbing up the higher altitude?
Water usually boils at 212F or 100C at sea level. As you go higher up in the atmosphere (higher altitude), the amount of atmosphere pushing down on you decreases, hence the pressure decreases. Water boils when the vapor pressure of the water equals the atmospheric pressure. Vapor pressure increases with increasing temperature, so when there is less atmospheric pressure, a smaller vapor pressure is required to get the water boiling, hence a lower boiling temperature.
How do you find the vapor pressure of water if the know temp of the water is 21 degrees C and the atmospheric pressure is 99.70 k Pa?
You can use a vapor pressure table or the Antoine equation to find the vapor pressure of water at 21 degrees C. The atmospheric pressure should not affect the calculation of the vapor pressure of water, as they are independent of each other in this context.
What effect does pressure have on water?
Water is effectively an incompressible substance, so pressure does not affect its' volume. However, its boiling and freezing points are directly related to the external pressure. Water boils when its vapor pressure is equal to the external pressure (or the atmospheric pressure if it is contained in some uncovered pot). Greater external pressure requires higher temperature for water so as to have that value of vapor pressure for it to boil. This is how pressure affects water.
What is the atmospheric pressure when a liquid is boiling at its normal boiling point?
The normal boiling point of ethanol is 78.4 degrees C and, at this temperature, the vapor pressure is 101,325 Pascals (Pa) or 760 manometric units (mm Hg), which is a pressure measurement using a millimeter of mercury.
Why does water boil at a lower temperature on a mountain than sea level?
Water boils at a lower temperature at higher altitudes because water boils when the vapor pressure of the heated water matches the pressure of the atmosphere pushing downward. Since there is a higher atmospheric pressure at sea level than in say a mountain, the temperature needed to boil water decreases.
What is atmospheric humidity?
Atmospheric humidity is defined as the amount of pressure of water vapor in an air to water mixture. This will be influenced by the temperature at a given time.
