Physics Calculator for Molecular Speed

Created by David Alderoty, November 2008.

The software on this website calculates the ROOT-MEAN-SQUARE, AVERAGE, and the MOST-PROBABLE-SPEED of gas molecules, simultaneously. 

If you have any suggestions or comments, contact me at RunDavid@Verizon.net, or you can left click on the following: Website Communication Form.  For a list of my other websites left click on the following link: www.David100.com

          Instructions:  To use this software, delete the blue word and numbers, in the yellow boxes, below.  (Delete 298, Helium, and 4.002602.) To delete, left click with the mouse on a blue number (slightly to the left of the number), and then press the Delete key.  Then, enter the *Kelvin temperature, molecular weight, and name of your gas. (The gas name is optional.) To obtain your result, left click with the mouse on the CALCULATION button or on the tan background, or press the Tab key.  (Do not press the Enter key.)  Your calculated results are the red numbers.

       For more information, a *calculator to convert temperature to the Kelvin scale, and an Excel version of the Physics Calculator for Molecular Speed scroll down.  

Kelvin Temperature =
Name of the Gas is:
Molecular Weight of the Gas =
(	Root Mean Square Speed	) =(	157.934851802	m/s	)
=				Meters per Second
				kilometres per second
				Feet per Second
				Miles per Hour
(	Average Speed	) =(	145.508179454	m/s	)
=				Meters per Second
				kilometres per second
				Feet per Second
				Miles per Hour
(	The most Probable Speed	) =(	128.953266506	m/s	)
=				Meters per Second
				kilometres per second
				Feet per Second
				Miles per Hour
(Root Mean Square Speed) +(Average Speed)+(The most Probable Speed)
		+			+
			3
	This is the average of the three calculations presented above.
=				Meters per Second
				kilometres per second
				Feet per Second
				Miles per Hour
Data entry in this section is optional, and is not required for the calculations in the other sections. In this section you can enter your own constants and units. But first delete the blue number ( 1 ) and the blue words.
(		) =(			)
=
The following calculator converts temperature to the Kelvin scale. To use it, delete the blue numbers, and enter the temperature you want to convert. Enter your numbers in the appropriate box, for either Celsius, or Fahrenheit conversion. To obtain your results, left click with the mouse on the green background, or press the Tab key.
	For Celsius conversion			to	Kelvin Temperature
				=
	For Fahrenheit conversion			to	Kelvin Temperature
				=

 

Excel Version of The

Physics Calculator for Molecular Speed

You can download an Excel version of the Physics Calculator for Molecular Speed, by left clicking on a blue link, bellow:

Click here for Excel version

Click here for a reusable Excel template version

With the Excel template version you can save your results, each time you do a calculation, in an Excel Worksheet, by saving with a new file name.  The Excel version works the same as the web version, except you press the enter key to obtain the calculated result.  However, to use the Excel version you must have Microsoft Excel and Windows.