1
AIEEE 2003
+4
-1
In an irreversible process taking place at constant T and P and in which only pressure-volume work is being done, the change in Gibbs free energy (dG) and change in entropy (dS), satisfy the criteria :
A
(dS)V, E > 0, (dG)T, P < 0
B
(dS)V, E = 0, (dG)T, P = 0
C
(dS)V, E = 0, (dG)T, P > 0
D
(dS)V, E < 0, (dG)T, P < 0
2
AIEEE 2003
+4
-1
The correct relationship between free energy change in a reaction and the corresponding equilibrium constant Kc is :
A
- $$\Delta G$$ = RT ln Kc
B
$$\Delta G^o$$ = RT ln Kc
C
- $$\Delta G^o$$ = RT ln Kc
D
$$\Delta G$$ = RT ln Kc
3
AIEEE 2003
+4
-1
The enthalpy change for a reaction does not depend upon :
A
use of different reactants for the same product
B
the nature of intermediate reaction steps
C
the differences in initial or final temperature of involved substances
D
the physical states of reactants and products
4
AIEEE 2002
+4
-1
If an endothermic reaction is non-spontaneous at freezing point of water and becomes feasible at its boiling point, then :
A
$$\Delta H$$ is -ve, $$\Delta S$$ is +ve
B
$$\Delta H$$ and $$\Delta S$$ are both +ve
C
$$\Delta H$$ and $$\Delta S$$ are both -ve
D
$$\Delta H$$ is +ve, $$\Delta S$$ is -ve
EXAM MAP
Medical
NEET