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What is the purpose of sub cooling R-12 in the condenser? .

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CoO、MoO3  CoO、CoS  CoS、MoS2  CoO、MoS2  
[H+]>[OH-]   [CH3COOH]+[CH3COO-]=0.2 mol/L      [CH3COOH]>[CH3COO-]   [CH3COO-]+[OH-]=0.2 mol/L  
[Na]=[CH3COO]+[CH3COOH]   [H]=c(CH3COO)+[OH]   [Na]>[CH3COO]>[OH]>[H]   [CH3COO]>[Na]>[H]>[OH]  
c (Na+)=c(CH3COO-)+c(CH3COOH)   c(H+)=c(CH3COO-)+c(OH-)   c (Na+) > c (CH3COO-)>c(OH-)>c(H+)   c (CH3COO-)>c(Na+)>c(H+)>c(OH-)  
c(Na+)=c(CH3COOH)+c(CH3COO)  c(H+)=c(CH3COO)+c(OH)  c(Na+)> c(CH3COO)> c(OH)> c(H+)  c(CH3COO)> c(Na+)> c(H+)> c(OH)  
在pH<4.76的溶液中,c(CH3COO)<c(CH3COOH)   在pH=7的溶液中,α(CH3COOH)=0,α(CH3COO)=1.0   在pH>4.76的溶液中,c(CH3COO)与c(OH)之和可大于c(H+)   在pH=4.76的溶液中加盐酸,α(CH3COOH)与α(CH3COO)之和保持不变  
c(C.H.3COO-)>c(Na+)   c(  H.3COO-)<c(Na+) C. c(C.H.3COO-)= c(Na+)  无法确定 c(C.H.3COO-)与c(Na+)的关系  
c(CH3COO)>c(Na)  c(CH3COO)<c(Na)   c(CH3COO)=c(Na)  无法确定c(CH3COO)与c(Na)的关系  
c(OH-)> c(H+)  c(CH3COOH)+c(CH3COO-)=0.2mol/L   c(CH3COOH)>c(CH3COO-)  c(CH3COO-)+c(OH-)=0.2mol/L  
c(Na)=c(CH3COO)+c(CH3COOH)  c(H)=c(CH3COO)+c(OH)   c(Na)>c(CH3COO)>c(OH)>c(H)  c(CH3COO)>c(Na)>c(H)>c(OH)  
[Na]=[CH3COO]+[CH3COOH]   [H]=[CH3COO]+[OH]   [Na]>[CH3COO]>[OH]>[H]   [CH3COO]>[Na]>[H]>[OH]  
在pH<4.76的溶液中,c(CH3COO)<c(CH3COOH)   在pH=7的溶液中,α(CH3COOH)=0,α(CH3COO)=1.0   在pH>4.76的溶液中,c(CH3COO)与c(OH)之和可大于c(H+)   在pH=4.76的溶液中加盐酸,α(CH3COOH)与α(CH3COO)之和保持不变  
[CH3COO-]>[Na+
  
[CH3COOH]>[CH3COO-
  
2[H+]=[CH3COO-]-[CH3COOH]
  
[CH3COOH]+[CH3COO-]=0.1mol・L-1  
c(CH3COO)<c(Na+)    c(CH3COOH)>c(CH3COO-)    2c(H+)=c(CH3COO)﹣c(CH3COOH)    c(CH3COOH)+c(CH3COO)=0.01mol/L  
c(CH3COO)<c(Na+)  c(CH3COOH)>c(CH3COO-)   2c(H+)=c(CH3COO)﹣c(CH3COOH)  c(CH3COOH)+c(CH3COO)=0.01mol/L  
c (Na+)==c(CH3COO)+c(CH3COOH)   c(H+)==c(CH3COO)+c(OH)   c (Na+) > c (CH3COO)>c(OH)>c(H+)   c (CH3COO)>c(Na+)>c(H+)>c(OH)  
[Na+] = [CH3COO]>[H+] = [OH]  [Na+]>[CH3COO]>[H+]>[OH]   [Na+]>[CH3COO]>[OH]>[H+]  [CH3COO]>[Na+]>[H+]>[OH]  
[CH3COO]>[Na]   [CH3COOH]>[CH3COO]   2[H]=[CH3COO]-[CH3COOH]   [CH3COOH]+[CH3COO]=0.02 mol·L-1  
c(CH3COO-)>c(Na+)>c(H+)>c(OH-)  c(H+)= c(CH3COO-)+ c(OH-)   c(Na+)= c(CH3COO-)+c(CH3COOH)  c(Na+)>c(CH3COO-)> c(OH-)> c(H+)  
c(CH3COO-)+)   c(CH3COOH) + c(CH3COO-)=0.2mol/L   c(CH3COOH) > c(CH3COO-)  c(CH3COO-)>c(Na+)  

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