Two systems are said to be in chemical equilibrium with each other when their chemical potentials are same. 3) Thermal equilibrium: When the system is in mechanical and chemical equilibrium and there is no spontaneous change in any of its properties, the system is said to be in thermal equilibrium.
While scientists have known for some time that genetics play a role in alcoholism and other addictions, they also understand the tendency to be dependent on alcohol is more complicated than the simple presence or absence of any one gene.
The existence of the disease alcoholism is widely accepted by the medical and scientific communities, [1] although critics exist. Theory. The modern disease theory of alcoholism meaning it is not at all a disease states that problem drinking is sometimes caused by a disease of the brain, characterized by altered brain structure and function. [2] Within the theory, this disease is called alcoholism or alcohol addiction although in common usage these words often have other meanings. Alcoholism is a chronic, life-long disease, such as diabetes. However, if managed properly, damage to the brain can be stopped and to some extent reversed.