1.

For which of the processes is DeltaS negative

Answer»

`H_(2)(g) rarr 2H(g)`
`N_(2)(g)1atm rarr N_(2)(g) 8 atm`
`2SO_(3)(g) rarr 2SO_(2)(g) + O_(2)(g)`
`C_(("diamond")) rarr C_(("graphite"))`

Solution :Processes (a) and (c ) take palce with the increase of no. of MOLES of GASEOUS species and hence the DISORDER or entropy increases. (b) on increasing pressure, disorder or RANDOMNESS DECREASES and so also the entropy (d) is endothermic process and `DeltaS` is positive.


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