Correct condition for adiabatic free expansion of ideal gas will be `square Delta H>0` `square Delta S_`(total)`>0` `square Delta U>0` `square Delta G>0`

Correct relation for isothermal reversible expansion of an ideal gas is DeltaS = 0 DeltaG = - T DeltaS DeltaH != 0 DeltaU != 0

How many of the following statement(s) is/are true for free expansion of ideal gas in an insulated container ? 1. It is a Reversible process. 2. Delta H=0 , for this process. 3. Delta E=0 , for this process. 4. Delta(PV)=0 5. Delta T = 0 , for this process. 6. Delta S_("surrounding")=0 , for this process. 7. Delta S_("system")=0 , for this process. 8. Delta S_("total") = 0 , for this process.

For a cyclic process,the condition is (A) Delta U=0 only (B) Delta H=0 only (C) Delta U>0 and Delta H>0 (D) both Delta U=0 and Delta H=0

For a process Delta S_("total") = 0 and Delta G = 0 was obtained. What does it mean?

Which number is in the triangle square and circle ?

Compare the areas of a equilateral triangle and a square of same perimeter.

Match the process given in Column - I with the entropy change in Column - II {: ( "Column I", " Column II"),( "(a)Reversible adiabatic ideal gas compression.", " (p)"DeltaS_("surr") = 0 ) , ("(b)Reversible isothermal ideal gas expansion." , "(q)" DeltaS_("system") = 0),(" (c)Adiabatic free expansion " (p_(ext) = 0)" of an ideal gas" , "(r)" DeltaS_("surr") gt 0 ) , ( "(d)Irreversible isothermal ideal gas compression." , " (s)" DeltaS_("surr") lt 0 ):}

In which of the following cases,the reaction is spontaneous at all temperature [A] Delta H>0,Delta S>0 ; [B] Delta H 0 ; [C] Delta H>0,Delta S<0