OUTLINE OF A THEORY OF ORGANIC CHEMISTRY FOUNDED ON THE LAW OF ENTROPY.1

Arthur Michael
1910 Journal of the American Chemical Society  
To distinguish between them they will be called positive and negative, but this does not imply any connection with positive and negative electricity. The terms free and hound chemical energy, as here used, are not to be confused with the ternis free and bound energy as used in physical chemistry, with which they are not identical.
doi:10.1021/ja01926a020 fatcat:bhf6334ypbgybp3hdijuikbze4