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. 1964 Nov-Dec;68A(6):567–578. doi: 10.6028/jres.068A.054

Table 1. Effect of possible systematic or random errors on the ETE scale, eq (1).

Systematic or random changes in the constants a and b of eqs (3) and (4) and of temperatures on the ETE scale below 1 °K are listed for the following arbitrary, but plausible, cases:

Case 1. the fit of the input (P3, T58) data expressed as the 95 percent confidence limit [53] for the prediction of a value of ln P at any single temperature (see fig. 1);

Case 2. random errors of ±3 percent in fx (Csat);

Case 3. random errors of ±3 percent in ϵ, eq (4a) of Part II;

Case 4. a systematic error of −3 percent in all Csat values, and hence in fx(Csat);

Case 5. a systematic error of +3 percent in all values of ϵ;

Case 6. the difference between the empirical function, fx(VL), and the numerically integrated values of the thermodynamic term, f(VL)=0TVL(dP/dT)satdT; and

Case 7. the increase of all values of input temperatures between 0.9 and 2.0 °K by adding 0.002 deg to each T58.

Case Δa Δb ΔT
1.0 °K 0.8 °K 0.6 °K 0.4 °K 0.2 °K
J/mole J/mole deg mdeg mdeq mdeq mdeg mdeq
1- ±0.006 ±0.004 ±0.4 ±0.3 ±0.3 ±0.2 ±0.1
2- - - 0. 0 ±0.1 ±0.2 ±0.4 ±0.4
3- - - ±0. 2 ±0.1 0.0 0.0 0.0
4- 0. 069 −0.060 0.2 0.5 0.8 1.0 1.0
5- 0. 073 −0.076 0.2 0.4 0.5 0.6 0.5
6- - - −0.1 −0.1 −0.1 0.0 0.0
7- 0.094 −0.026 - 1.7 1.5 1.2 0.7