What is meant by entropy driven reaction? How can the reaction with positive change of enthalpy and entropy be made entropy driven?

No, it cannot be reversed, so it is an irreversible change.

S. NO Change Can be reversed (Yes / NO) 1. The Sawing of a Piece of food No 2. The melting of ice candy yes 3. Dissolving sugar in water  yes 4. The cooking of food No 5. The Ripening of mango No 6. Souring of milk No

(c) : This is according to Hess's law.

(d) Electron gain enthalpy for noble gases is positive and it becomes less positive with increase in size of atom.  Value of electron gain enthalpy  He – 48 kJ mol–1, Ne –...

Second electron affinity of O is largely +ve because of repulsion between negatively charged ions and second electron to be added. Energy required to overcome repulsion is more than the...

Amount of energy Required to break one mole of bonds of particular type b/w two atoms in a gaseous state.  Its unit is KJ/mole It is obtained by dividing total bond...

Most of the processes are carried out in an open system i.e, at constant pressure.

Yes ,in adiabatic process enthalpy of the system is zero.

∆S = q rev/T

 Entropy change (∆S) is positive. It is because disorder or degree of freedom increases on mixing.