<unk> , also known as endergonic, refers to a transformation in which a system receives heat from the surroundings:
When the transformation occurs at constant pressure:
and constant volume:
If the surroundings do not supply heat (e.g., when the system is adiabatic), an<unk>  transformation leads to a decrease in the temperature of the system.
Some examples of<unk>  processes are:
Melting of ice
Depressurising a pressure can
Endothermic
Exothermic
Sedative
Liquid
Hypnotic
Chronic 
Anorectic
Tachycardia causes