Question

Differentiate between enthalpy driven and entropy driven reactions with the help o
suitable examples

Answer 1

Solution.

Entropy.

For a spontaneous process (chemical reaction), the change in entropy is always greater than 0. For example:

Cu + 2AgNO3 = 2Ag + Cu(NO3)2Cu+2AgNO3=2Ag+Cu(NO3)2

If the entropy change is less than 0, then the reaction goes in the opposite direction (or you need to apply additional energy for this process to proceed).

Enthalpy.

If the change in the enthalpy of the reaction is less than 0, then this reaction proceeds with the release of heat. For example:

S + O2 = SO2S+O2=SO2

If the change in the enthalpy of a reaction is greater than 0, then this reaction proceeds with the absorption of heat. For example:

CaCO3 = CaO + CO2CaCO3=CaO+CO2

Answer:

Entropy.

For a spontaneous process (chemical reaction), the change in entropy is always greater than 0. For example:

Cu + 2AgNO3 = 2Ag + Cu(NO3)2Cu+2AgNO3=2Ag+Cu(NO3)2

If the entropy change is less than 0, then the reaction goes in the opposite direction (or you need to apply additional energy for this process to proceed).

Enthalpy.

If the change in the enthalpy of the reaction is less than 0, then this reaction proceeds with the release of heat. For example:

S + O2 = SO2S+O2=SO2

If the change in the enthalpy of a reaction is greater than 0, then this reaction proceeds with the absorption of heat. For example:

CaCO3 = CaO + CO2CaCO3=CaO+CO2

Answer 2

Enthalpy is the measure of total heat present in the thermodynamic system where the pressure is constant.

It is represented as ΔH=ΔE+PΔV where E is the internal energy.

Entropy is the measure of disorder in a thermodynamic system. It is represented as ΔS=ΔQ/T where Q is the heat content and T is the temperature.

Explanation:

plz mark as brainliest