A transformation is termed endothermic if it absorbs energy in the form of heat A typical endothermic °reaction increases both °entropy and molecular °potential energy (and is thus analogous to a gas expanding while absorbing heat and compressing a spring)
refers to a reaction where energy (as heat) flows into the system; at constant pressure H is positive for an endothermic reaction
{s} warm-blooded, having a constant internal temperature (Biology); pertaining to the absorption of heat (Chemistry)
reacting systems which absorb heat from the surroundings Heat "goes into" the system, so DH is positive The opposite of exothermic On this potential energy graph DH is represented by the vertical distance from reactants to products This shows an increase in energy of the system, so the forward reaction is endothermic Endothermic reactions have a positive DH