1.

DeltaS is expected to be maximum for the reaction _____

Answer»

`Ca_((s)) + 1//2O_(2(G)) to CaO_((s))`
`C_((s)) + O_(2(g)) to CO_(2(g))`
`N_(2(g)) + O_(2(g)) to 2NO_((g))`
`CaCO_(3(s)) to CaO_((s)) +CO_(2(g))`

Solution :In `CaCO_(3(s)) toCaO_((s)) +CO_(2(g))` , entropy change is positive . In (a) and (B) entropy change is negative , in (C ) entropy change is zero.


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