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Entropy is a measure of disorder or randomness of a system. Enthalpy is defined as the sum of internal energy of a system and the product of the pressure and volume of the system.

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Entropy is the measure of the disorderliness of the system...like in solids the intermolecular forces of attraction are strong and hence less disorder....Therefore Entropy of gases is very high... Enthalpy H is the sum of internal energy U of a system and the product of the pressure and volume of...

read more Entropy is the measure of the disorderliness of the system...like in solids the intermolecular forces of attraction are strong and hence less disorder....Therefore Entropy of gases is very high... Enthalpy H is the sum of internal energy U of a system and the product of the pressure and volume of the system. read less

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Enthalpy(H)=U+PV U is internal energy of the system, and PV represents pressure volume energy, so enthalpy of a system is amount of energy required to create the system plus energy required to displace its environment and establish its volume and pressure so that system can exist. To understand entropy...

read more Enthalpy(H)=U+PV U is internal energy of the system, and PV represents pressure volume energy, so enthalpy of a system is amount of energy required to create the system plus energy required to displace its environment and establish its volume and pressure so that system can exist. To understand entropy one must go through 2nd law of thermodynamics. In simple terms one can say that entropy is measurement of energy in a system that can NEVER be utilised. read less

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For example we take a system of molecules in a closed box, The heat content of all of them is measured as enthalpy whereas the disorderness of all the molecules is measured as entropy

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