1.

Which reaction characteristics are changing by the addition of a catalyst to a reaction at constant temperature (i)            Activation energy            (ii)           Equilibrium constant (iii)          Reaction entropy             (iv)         Reaction enthalpy [DCE 2003]

A.                 (i) Only
B.                 (iii) only
C.                 (i) and I(ii) only 
D.                 All of these
Answer» B.                 (iii) only


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