The concept of entropy—commonly understood as “disorder”—was developed in the 19th century by Sadi Carnot and Rudolf Clausius, who were searching for the most efficient way to convert ...

Using high throughput first-principles calculations, Kioupakis uncovered the complex interplay between the enthalpy and entropy in GeSnPbSSeTe high-entropy chalcogenide alloys.

The Second Law of Thermodynamics says, in simple terms, entropy always increases. This principle explains, for example, why you can't unscramble an egg.

A first reading of the results reveals that there is a change of enthalpy and entropy during the transition state corresponding to 20% approximately of the total measured in the folding.

An endothermic reaction absorbs heat and reveals that heat is consumed in the form of a reaction from the surroundings. As q>0, if q is positive, then ΔH is also positive.