A sample of liquid in a thermally insulated container is stirred to increase the temperature.For this process `" (A) "w<0;q=0;Delta U,=0`, `" (B) "w>0;q>0;Delta U>0]`, `" (c) "w<0;q>0;Delta U,=0`, `" (D) "w>0;q=0;Delta U>0`

Delta U=0 for

Which is always false for isothermal process "(A) "W!=0 , "(B) "Delta U!=0 , " (C) "Delta T=0 , " (D) "q=0

Which of the following is are true in the case of an adiabatic process (A) "q=W , (B) "Delta U=q , (C) "q=0 , (D) "Delta U=W

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.

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

The process in which the value of Delta U=0 is :

If both the roots of ax^2+bx+c=0 are positive then 1) Delta >0, ab>0, ac>0 2)Delta 0, ab 0 4) Delta>0, ab>0, bc>0