Like any equilibrium constant, Kw changes with temperature.(b) In many medical applications, the value of Kw at 37°C (body temperature) may be more appropriate than the value at 25°C, 1.0x10⁻¹⁴. The pH of pure water at 37°C is 6.80.Calculate Kw, pOH, and [OH⁻] at this temperature.