UNION OF ANTIBODY WITH ANTIGEN 133 



^(In K)/dT = AH°/RT' (25) 



If we assume A//° is independent of T in the range of temperatures 

 studied, we can integrate equation (25) to obtain 



\n(K,/Kr) = - {AHyR)[l/T, + l/T^] (26) 



which makes it possible to estimate AH° if observations on the 

 equihbrium constant are available at two different temperatures. 

 In fact this is the commonest way of obtaining AH°. 



References 



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