Observations significant figures

As In Example, the result has only two significant figures because of the sensitivity of powers of e to small variations. We see that at this temperature, the equilibrium constant has a small value, indicating that the reactants are favored. This is consistent with the observation that the Haber reaction has only a 13% yield at elevated temperature. 

Figure 12.11 superimposes distillation lines and residue curves for the same ternary systems. Figure 12.11a shows the system n-pentane, n-hexane and n -heptane, which is a relatively wide boiling mixture. It can be observed in Figure 12.11a that there are significant differences between the paths of the distillation lines and the residue curves. By... 

When cycling a NGF electrode under the same conditions (Figure 2), the deintercalation peak current values are much higher. At the same time, under comparable conditions, a noticeable surface oxidation of NGF starts to be observed significantly earlier, after Nstable = 50-60 cycles. The service life of the NGF electrode is Nmax =100 cycles. 

This explains why the well-defined diffraction peaks up to the (004) plane are observed (see Figure 9.2). The entropic contribution of the intercalants, which leads to the entropy gain associated with the layer expansion after intercalation of the polymer chains, may not be significant because of the interdigitated layer structure. 

Figure 4b shows the development of other peaks which are responding to sequence-related information in the growing chain. The peak at 114.21 ppm is due to the methylene olefin carbon of a 1,2 unit in the chain. Of special significance is the resonance peak at 62.80 ppm which is the same as that observed in Figure 3 as a result of heating at 70°C. Thus, even at room temperature, some "metalation" is taking place in the presence of excess n-BuLi. 

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