The conventional method of determining the quantity of thermal energy that must be absorbed by a substance for it to exist at the standard temperature, T degrees (= 298.15 K), is to multiply the standard entropy, S degrees of that substance, by T degrees. The standard entropy is determined by calculating the area under a curve comprising incremental C-p values plotted against 1n T, where the lower limit is T approximate to 10 K and the upper limit of T=T degrees. Extrapolation of the curve to 0 K usually is achieved using the Debye T-3 equation. The total quantity of heat, Q degrees, that must be introduced into a sample in a low temperature calorimeter to raise it from 0 K to T degrees can be determined by calculating the area under a curve comprising the same incremental C-p values plotted against T. Conventionally, T degrees S degrees=Q degrees. However, in this paper it is demonstrated that for solid state organic substances T degrees S degrees approximate to 2Q degrees.