Pressure perturbation calorimetry

Pressure perturbation calorimetry is like playing with a balloon, but instead of air inside, there is a special liquid or gas. When the balloon is squeezed, the liquid or gas inside gets compressed and creates a change in pressure, just like when you squeeze a ball and it gets harder. Scientists can use this change in pressure to learn about the balloon's contents.

In pressure perturbation calorimetry, the balloon is replaced with a tiny container that holds a sample of a substance that scientists want to study. When pressure is changed, the substance inside the container changes too, and scientists can measure how much energy is released or absorbed during this change. This helps them understand the properties of the substance and how it behaves under different conditions.

So, in simple terms, pressure perturbation calorimetry is just like squeezing a balloon to see what's inside, but instead of playing with balloons, scientists use special containers to study different substances and how they change under different pressures.