JEE MAIN - Chemistry (2018 - 16th April Morning Slot - No. 9)
For which of the following processes, $$\Delta $$S is negative ?
H2(g) $$ \to $$ 2H(g)
N2(g, 1 atm) $$ \to $$ N2(g, 5 atm)
C(diamond) $$ \to $$ C(graphite)
N2(g, 273 K) $$ \to $$ N2(g, 300 K)
Explanation
N2(g, 1 atom) $$\buildrel \, \over
\longrightarrow $$ N2(g, 5 atom)
Here pressure increases. When pressure increases then the molecules of will come closer and intermoleculer distance decreases, so entropy will also decreases and $$\Delta S\, < \,0$$.
Here pressure increases. When pressure increases then the molecules of will come closer and intermoleculer distance decreases, so entropy will also decreases and $$\Delta S\, < \,0$$.
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