Sunday, July 26, 2020

What's the basic difference between entropy (熵, S) and enthalpy (焓, H) ?

https://www.quora.com/Whats-the-basic-difference-between-entropy-and-enthalpy

https://zh.wikipedia.org/wiki/%E7%84%93

https://zh.wikipedia.org/wiki/%E7%86%B5


H = U + PV 

U is the internal energy of the system and P is constant pressure, and V is volume

ΔH = ΔU + PΔV

ΔS = ΔH/T

T is the temperature in °K or °C

Entropy measures the amount of disorder a system undergoes while transferring heat.