👉 Speigler's law, also known as the Clausius-Clapeyron equation, describes the relationship between heat capacity and temperature for a gas at constant pressure. It states that at constant volume (V), the ratio of specific heat capacities (Cv) to temperature (T) is given by: \[ C_v = \frac{1}{\tau} \] where τ is the thermal diffusivity, which is related to the heat capacity by \(C_c = 3