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1
AIEEE 2003
MCQ (Single Correct Answer)
+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
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
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
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
For the reactions
2C + O2 $$\to$$ 2CO2; $$\Delta H$$ = -393 J
2Zn + O2 $$\to$$ 2ZnO; $$\Delta H$$ = -412 J
A
carbon can oxidise Zn
B
oxidation of carbon is not feasible
C
oxidation of Zn is not feasible
D
Zn can oxidise carbon
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
The heat required to raise the temperature of body by 1 K is called :
A
specific heat
B
thermal capacity
C
water equivalent
D
none of these
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