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激活低压金刚石气相生长过程是热力学耦合反应,在生长温度1200K,压强为104kPa和激活温度为2400K时,以石墨为原料最终生成金刚石是一个负熵(产生)反应(ΔiS1=-5.80JK-1);它在超平衡原子氢生成氢分子的正熵反应(ΔiS2=93.93JK-1)的推动下得以进行;耦合参数的经验值χ=0.28,生成低压金刚石的总反应熵产生(ΔiS3=ΔiS1+χΔiS2=20.50JK-1)是正值;符合热力学基本定律.负熵反应和热力学耦合术语被广泛用于解释生命现象,但以往从未找到定量的证明.
Activation of low-pressure diamond vapor phase growth process is a thermodynamic coupling reaction, the growth temperature of 1200K, the pressure of 104kPa and the activation temperature of 2400K, graphite as the final raw material to produce diamond is a negative entropy (reaction) (ΔiS1 = -5.80JK-1 ); It is promoted by the positive entropy reaction (ΔiS2 = 93.93JK-1) of hyperhydrophobic atomic hydrogen hydrogen molecules; the empirical value of the coupling parameter χ = 0.28, the total reaction entropy of low pressure diamond generation ΔiS3 = ΔiS1 + χΔiS2 = 20.50JK-1) is positive; in line with the basic laws of thermodynamics. Negative-entropy reaction and thermodynamic coupling terms are widely used to explain the phenomenon of life, but in the past never find a quantitative proof.