Vapour Pressure P1 at Temperature T1 Formula

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Vapor pressure of component B is defined as the pressure exerted by B's vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system. Check FAQs
PB=PAexp(-(ΔHv[R])((1Tabs)-(1T2)))
PB - Vapor Pressure of component B?PA - Vapour Pressure of Component A?ΔHv - Molal Heat of Vaporization?Tabs - Absolute Temperature?T2 - Absolute temperature 2?[R] - Universal gas constant?

Vapour Pressure P1 at Temperature T1 Example

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With units
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Here is how the Vapour Pressure P1 at Temperature T1 equation looks like with Values.

Here is how the Vapour Pressure P1 at Temperature T1 equation looks like with Units.

Here is how the Vapour Pressure P1 at Temperature T1 equation looks like.

562.2836Edit=1000Editexp(-(11Edit8.3145)((1273.15Edit)-(1310Edit)))
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Vapour Pressure P1 at Temperature T1 Solution

Follow our step by step solution on how to calculate Vapour Pressure P1 at Temperature T1?

FIRST Step Consider the formula
PB=PAexp(-(ΔHv[R])((1Tabs)-(1T2)))
Next Step Substitute values of Variables
PB=1000Paexp(-(11KJ/mol[R])((1273.15K)-(1310K)))
Next Step Substitute values of Constants
PB=1000Paexp(-(11KJ/mol8.3145)((1273.15K)-(1310K)))
Next Step Convert Units
PB=1000Paexp(-(11000J/mol8.3145)((1273.15K)-(1310K)))
Next Step Prepare to Evaluate
PB=1000exp(-(110008.3145)((1273.15)-(1310)))
Next Step Evaluate
PB=562.283634247979Pa
LAST Step Rounding Answer
PB=562.2836Pa

Vapour Pressure P1 at Temperature T1 Formula Elements

Variables
Constants
Functions
Vapor Pressure of component B
Vapor pressure of component B is defined as the pressure exerted by B's vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system.
Symbol: PB
Measurement: PressureUnit: Pa
Note: Value can be positive or negative.
Vapour Pressure of Component A
Vapour Pressure of Component A is defined as the pressure exerted by A's vapour in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system.
Symbol: PA
Measurement: PressureUnit: Pa
Note: Value can be positive or negative.
Molal Heat of Vaporization
Molal Heat of Vaporization is the energy needed to vaporize one mole of a liquid.
Symbol: ΔHv
Measurement: Energy Per MoleUnit: KJ/mol
Note: Value can be positive or negative.
Absolute Temperature
Absolute Temperature is defined as the measurement of temperature beginning at absolute zero on the Kelvin scale.
Symbol: Tabs
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Absolute temperature 2
Absolute temperature 2 is the temperature of an object on a scale where 0 is taken as absolute zero.
Symbol: T2
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Universal gas constant
Universal gas constant is a fundamental physical constant that appears in the ideal gas law, relating the pressure, volume, and temperature of an ideal gas.
Symbol: [R]
Value: 8.31446261815324
exp
n an exponential function, the value of the function changes by a constant factor for every unit change in the independent variable.
Syntax: exp(Number)

Other formulas in Vapour Pressure category

​Go Vapor Pressure of Pure Liquid A in Raoult's Law
PAo=ppartialxA
​Go Vapour Pressure P2 at Temperature T2
PA=PBexp((ΔHv[R])((1T2)-(1Tabs)))

How to Evaluate Vapour Pressure P1 at Temperature T1?

Vapour Pressure P1 at Temperature T1 evaluator uses Vapor Pressure of component B = Vapour Pressure of Component A*exp(-(Molal Heat of Vaporization/[R])*((1/Absolute Temperature)-(1/Absolute temperature 2))) to evaluate the Vapor Pressure of component B, The Vapour Pressure P1 at Temperature T1 is that pressure exerted by a liquid or solid molecules of only B in a closed system at which they are in equilibrium with the vapor phase. Vapor Pressure of component B is denoted by PB symbol.

How to evaluate Vapour Pressure P1 at Temperature T1 using this online evaluator? To use this online evaluator for Vapour Pressure P1 at Temperature T1, enter Vapour Pressure of Component A (PA), Molal Heat of Vaporization (ΔHv), Absolute Temperature (Tabs) & Absolute temperature 2 (T2) and hit the calculate button.

FAQs on Vapour Pressure P1 at Temperature T1

What is the formula to find Vapour Pressure P1 at Temperature T1?
The formula of Vapour Pressure P1 at Temperature T1 is expressed as Vapor Pressure of component B = Vapour Pressure of Component A*exp(-(Molal Heat of Vaporization/[R])*((1/Absolute Temperature)-(1/Absolute temperature 2))). Here is an example- 562.2836 = 1000*exp(-(11000/[R])*((1/273.15)-(1/310))).
How to calculate Vapour Pressure P1 at Temperature T1?
With Vapour Pressure of Component A (PA), Molal Heat of Vaporization (ΔHv), Absolute Temperature (Tabs) & Absolute temperature 2 (T2) we can find Vapour Pressure P1 at Temperature T1 using the formula - Vapor Pressure of component B = Vapour Pressure of Component A*exp(-(Molal Heat of Vaporization/[R])*((1/Absolute Temperature)-(1/Absolute temperature 2))). This formula also uses Universal gas constant and Exponential Growth (exp) function(s).
Can the Vapour Pressure P1 at Temperature T1 be negative?
Yes, the Vapour Pressure P1 at Temperature T1, measured in Pressure can be negative.
Which unit is used to measure Vapour Pressure P1 at Temperature T1?
Vapour Pressure P1 at Temperature T1 is usually measured using the Pascal[Pa] for Pressure. Kilopascal[Pa], Bar[Pa], Pound Per Square Inch[Pa] are the few other units in which Vapour Pressure P1 at Temperature T1 can be measured.
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