Cloud Formation Physics Lab: Safe Adiabatic Expansion Visualizer

Pressure (P) 101.3 kPa

Temperature (T) 22.0 °C

Dew Point (T_dew) 17.3 °C

Cloud Opacity 0%

Experiment Controls

Relative Humidity (RH) 75%

Ambient Temperature 22.0 °C

Smoke / Nuclei Particles

🛡️ Physics & Classroom Safety Insight

Why Physical Fire Methods are Hazardous

Traditional classroom experiments often use lit matches dropped into bottles to generate smoke nuclei. As highlighted in recent news, this practice introduces burn hazards and open fires in elementary settings. This simulator proves that safe mechanical aerosol sources (or dry smoke particles) work identically via pressure drop alone.

Thermodynamic Principle (Adiabatic Expansion):
When pressurized air inside a sealed container is rapidly vented:
T_final = T_initial * (P_final / P_initial)^((γ-1)/γ)
The rapid pressure drop performs work on the surroundings without external heat transfer, causing an instantaneous thermal collapse below the dew point (T < T_dew) and triggering condensation.

        Completed State Proof: Baseline Simulation Loaded - Pressurize & Release to observe Cloud Nucleation.
      