A) \[20\text{ }K\]
B) \[\text{12 }K\]
C) \[\text{5 }K\]
D) \[\text{4 }K\]
Correct Answer: C
Solution :
\[\Delta H=200J\,mo{{l}^{-1}}\] |
\[\Delta S=40J{{K}^{-1}}\,mo{{l}^{-1}}\] |
For spontaneous reaction, \[\Delta G<0\] |
\[\Delta H-T\Delta S<0;\] \[\Delta H<T\Delta S;\] \[\frac{\Delta H}{\Delta S}<T;\] \[\frac{200}{40}<T\] |
\[S<T\] |
So, minimum temperature is 5 K |
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