Most Probable Speed Formula

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Most probable speed is the speed at the top of Maxwell-Boltzmann Distribution curve because the largest number of molecules have that speed. Check FAQs
Vp=2[R]TgaMmolar
Vp - Most Probable Speed?Tga - Temperature of Gas A?Mmolar - Molar Mass?[R] - Universal gas constant?

Most Probable Speed Example

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With units
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Here is how the Most Probable Speed equation looks like with Values.

Here is how the Most Probable Speed equation looks like with Units.

Here is how the Most Probable Speed equation looks like.

130.3955Edit=28.314545Edit44.01Edit
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Most Probable Speed Solution

Follow our step by step solution on how to calculate Most Probable Speed?

FIRST Step Consider the formula
Vp=2[R]TgaMmolar
Next Step Substitute values of Variables
Vp=2[R]45K44.01g/mol
Next Step Substitute values of Constants
Vp=28.314545K44.01g/mol
Next Step Convert Units
Vp=28.314545K0.044kg/mol
Next Step Prepare to Evaluate
Vp=28.3145450.044
Next Step Evaluate
Vp=130.395517711186m/s
LAST Step Rounding Answer
Vp=130.3955m/s

Most Probable Speed Formula Elements

Variables
Constants
Functions
Most Probable Speed
Most probable speed is the speed at the top of Maxwell-Boltzmann Distribution curve because the largest number of molecules have that speed.
Symbol: Vp
Measurement: SpeedUnit: m/s
Note: Value can be positive or negative.
Temperature of Gas A
The Temperature of Gas A is a measure of the average kinetic energy of the gas particles, influencing their behavior and interactions in thermodynamic processes.
Symbol: Tga
Measurement: TemperatureUnit: K
Note: Value can be positive or negative.
Molar Mass
Molar Mass is the mass of a given substance divided by the amount of substance.
Symbol: Mmolar
Measurement: Molar MassUnit: g/mol
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
sqrt
A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.
Syntax: sqrt(Number)

Other formulas in Factors of Thermodynamics category

​Go Absolute Humidity
AH=WV
​Go Average Speed of Gases
Vavg=8[R]TgaπMmolar
​Go Degree of Freedom given Equipartition Energy
F=2K[BoltZ]Tgb
​Go Molar Mass of Gas given Average Speed of Gas
Mmolar=8[R]TgaπVavg2

How to Evaluate Most Probable Speed?

Most Probable Speed evaluator uses Most Probable Speed = sqrt((2*[R]*Temperature of Gas A)/Molar Mass) to evaluate the Most Probable Speed, Most Probable Speed formula is defined as a representation of the speed at which the maximum number of molecules in a gas are likely to be found, reflecting the relationship between temperature, gas constant, and molar mass. Most Probable Speed is denoted by Vp symbol.

How to evaluate Most Probable Speed using this online evaluator? To use this online evaluator for Most Probable Speed, enter Temperature of Gas A (Tga) & Molar Mass (Mmolar) and hit the calculate button.

FAQs on Most Probable Speed

What is the formula to find Most Probable Speed?
The formula of Most Probable Speed is expressed as Most Probable Speed = sqrt((2*[R]*Temperature of Gas A)/Molar Mass). Here is an example- 130.3955 = sqrt((2*[R]*45)/0.04401).
How to calculate Most Probable Speed?
With Temperature of Gas A (Tga) & Molar Mass (Mmolar) we can find Most Probable Speed using the formula - Most Probable Speed = sqrt((2*[R]*Temperature of Gas A)/Molar Mass). This formula also uses Universal gas constant and Square Root (sqrt) function(s).
Can the Most Probable Speed be negative?
Yes, the Most Probable Speed, measured in Speed can be negative.
Which unit is used to measure Most Probable Speed?
Most Probable Speed is usually measured using the Meter per Second[m/s] for Speed. Meter per Minute[m/s], Meter per Hour[m/s], Kilometer per Hour[m/s] are the few other units in which Most Probable Speed can be measured.
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