1.

State the II law of Thermodynamics. Give the equation that relates Gibbs energy with Entropy and Enthalpy of a system?

Answer»

Second law of thermodynamics can be stated in a number of forms: 

  • All spontaneous processes or naturally occurring processes are thermodynamically irreversible. 
  • Without the help of an external agency, a spontaneous process cannot to reversed. 
  • The entropy of an isolated system increase if it is to be spontaneous in a particular direction. 
  • In a non-isolated system, the total entropy of both the system and surroundings must increase or must be positive. 
  • The total entropy of the universe must tend to increase in a spontaneous process. G = H – TS


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