Question

what is enthalpy and entropy

Answer 1

Hi friend,

ENTHALPY:-

-»Enthalpy is a measurement of energy in a thermodynamic system. It is equal to the internal energy of the system plus the product of pressure and volume.

-»Enthalpy is defined as a state function that depends only on the prevailing equilibrium state identified by the system's internal energy, pressure, and volume.

-»It is an extensive quantity.

-»The unit of measurement for enthalpy in the International System of Units (SI) is the joule, but other historical, conventional units are still in use, such as the British thermal unit and the calorie.
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ENTROPY:-

-» In statistical mechanics, entropy is related to the number of  microscopic  configurations  Ω that a thermodynamics system can have when in a state as specified by some macroscopic variables. 
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HOPE THIS HELPS YOU:-))

Answer 2

Enthalpy:-
Enthalpy is a state function.
Enthalpy of a system may be defined as the sum of the internal energy and the product of its pressure and volume. It is denoted by the symbol H and is given by H = U + PV

Entropy:-

Entropy(S)is a measure of disorder or randomness.For a spontaneous change,total entropy change is positive.Entropy is function of quantity of heat, the property of the system which decides the percentage of heat that can be converted into work. Entropy shows the randomness of molecules.

I hope dis was useful 2 u..