Irreversible Process

Enthalpy|| Calculation OF deltaH||deltaE||W||q for different Processes||Case OF Ideal gas undergoing change OF state||Isothermal Process||Reversible and Irreversible Process|| Class Illustrations with Short Tricks

Match the enteries of processing given in List - I with the description given in List -II and choose the correct option (a),(b),(c) and (d) given in code. {: ( "List-I", " List-II"),( "(P)Isobaric process", " (1)process in which driving force is very different than opposing force.") , ("(Q)Isothermal process" , "(2)process in which no heat enters or leaves the system."),(" (R)Adiabatic process" , "(3)process in which temperature of the system remains constant.") , ( "(S)Irreversible process" , " (4)A process in which pressure of the system is kept constant."):}

Assetion : A quasi static isothermal expansion of an idel gas in a cylinder fitted with a frictionless movablepistonis a irreversible process. Reason : A process is irreversible only if system remains in equilibrium with the surroundings at every stage.

In an isothermal expansion of a gaseous sample the correct relation is (consider w (work) with sign according to new IUPAC convention) [The reversible and irreversible processes are carried out between same initial and final states]

In an isothermal expansion of a gaseous sample, the correct relation is: ( consider w (work) with sign according to new IUPAC convention) [ The reversible and irreversible processes are carried out between same initial and final states.]

Entropy ( S ) is a thermodynamic variable like pressure P , volume V and temperature T . Entropy of a thermodynamic system is a measure of disorder of molecular motion. Greater is disorder , greater is entropy. Change in entropy of a thermodynamic system is the ratio of heat supplied to absolute temperature.In an adiabatic reversible process, entropy remains constant while in any irreversible process entropy increases. In nature the processes are irreversible , therefore entropy of universe is continuoulsy increasing. The unit of entropy in S-I system is -

Entropy ( S ) is a thermodynamic variable like pressure P , volume V and temperature T . Entropy of a thermodynamic system is a measure of disorder of molecular motion. Greater is disorder , greater is entropy. Change in entropy of a thermodynamic system is the ratio of heat supplied to absolute temperature.In an adiabatic reversible process, entropy remains constant while in any irreversible process entropy increases. In nature the processes are irreversible , therefore entropy of universe is continuoulsy increasing. When milk is heated , its entropy :

Entropy ( S ) is a thermodynamic variable like pressure P , volume V and temperature T . Entropy of a thermodynamic system is a measure of disorder of molecular motion. Greater is disorder , greater is entropy. Change in entropy of a thermodynamic system is the ratio of heat supplied to absolute temperature.In an adiabatic reversible process, entropy remains constant while in any irreversible process entropy increases. In nature the processes are irreversible , therefore entropy of universe is continuoulsy increasing. After a long-long time, the energy available for work done will be :

Which of the following statement (s) is correct? Statement-I: The entropy of isolated system with P-V work only, is always maximized at equillibrium. Statement-2: It is possible for the entropy of closed system to decrease substantialy in an irreversible process. Statemet-3: Entropy can be crearted but not destroyed. Statement-4 DeltaS_(system) is zero for reversible process in an isolated system.