Enter the pressure (Pa) and the change in volume (m^3) into the calculator to determine the change in energy (J).

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## Pressure Volume Energy (J) Formula

The following equation is used to calculate the change in energy (J).

dE = P * dV

Variables:

- Where dE is the change in energy (J) ((J))
- P is the pressure (Pa)
- dV is the change in volume (m^3)

To calculate the change in energy, multiply the pressure by the change in volume.

## How to Calculate Pressure Volume Energy?

The following two example problems outline the steps and information needed in order to calculate the change in energy (J).

**Example Problem #1:**

- First, determine the pressure (Pa). In this example, the pressure (Pa) is measured to be 10.
- Next, determine the change in volume (m^3). For this problem, the change in volume (m^3) is calculated to be 3.
- Finally, calculate the change in energy (J) using the formula above:

dE = P * dV

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

dE = 10 * 3 = 30 (J)

**Example Problem #2: **

Using the same process as example problem 1, we first define the needed variables outlined by the formula. In this case, the values are provide as:

pressure (Pa) = 4

change in volume (m^3) = 10

Entering these values into the formula or calculator above gives us:

dE = 4 * 10 = 40 ((J))