Enter the initial pressure, volume change, and temperature change into the calculator to determine the pressure decrease. This calculator helps in understanding how changes in volume and temperature affect the pressure of a gas.

Pressure Decrease Formula

The following formula is used to calculate the pressure decrease:

ΔP = (P₁ * ΔV) / ΔT

Variables:

  • ΔP is the pressure decrease (Pascals)
  • P₁ is the initial pressure (Pascals)
  • ΔV is the volume change (Cubic meters)
  • ΔT is the temperature change (Kelvin)

To calculate the pressure decrease, multiply the initial pressure by the volume change and then divide by the temperature change.

What is Pressure Decrease?

Pressure decrease refers to the reduction in pressure experienced by a gas when there is an increase in volume or a decrease in temperature, according to the combined gas law. This concept is important in various fields such as physics, engineering, and meteorology, where understanding the behavior of gases under different conditions is crucial.

How to Calculate Pressure Decrease?

The following steps outline how to calculate the Pressure Decrease.


  1. First, determine the initial pressure (P₁) in Pascals.
  2. Next, determine the volume change (ΔV) in Cubic meters.
  3. Next, determine the temperature change (ΔT) in Kelvin.
  4. Next, gather the formula from above = ΔP = (P₁ * ΔV) / ΔT.
  5. Finally, calculate the Pressure Decrease (ΔP) in Pascals.
  6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge.

Initial Pressure (P₁) = 101325 Pascals (1 atmosphere)

Volume Change (ΔV) = 0.5 Cubic meters

Temperature Change (ΔT) = 10 Kelvin