Enter the total pressure (Pa) and the change in volume (m^3) into the calculator to determine the Work From Pressure and Volume. 

Work From Pressure and Volume Formula

The following formula is used to calculate the Work From Pressure and Volume. 

W = -p*dV
  • Where W is the Work From Pressure and Volume (Joules)
  • p is the total pressure (Pa) 
  • dV is the change in volume (m^3) 

To calculate work from pressure and volume, multiply the total pressure by the change in volume.

How to Calculate Work From Pressure and Volume?

The following two example problems outline how to calculate the Work From Pressure and Volume.

Example Problem #1:

  1. First, determine the total pressure (Pa). In this example, the total pressure (Pa) is given as 50.
  2. Next, determine the change in volume (m^3). For this problem, the change in volume (m^3) is given as 30.
  3. Finally, calculate the Work From Pressure and Volume using the equation above: 

W = -p*dV

Inserting the values from above and solving the equation with the imputed values gives: 

W = -50*30 = -1500 (Joules)


Example Problem #2: 

Using the same process as above, first define the variables required by the formula. In this case, these values are:

total pressure (Pa) = 100

change in volume (m^3) = 25

Entering these values yields:

W = -100*25 = -2500 (Joules)