Statement 1 : Many endothermic reactions that are not
spontaneous at room temperature become spontaneous at
high temperature.
Statement 2 : Entropy of the system increases with increase
in temperature. [AIIMS 2013]
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Statement I and Statement II is correct.
Step by step explanation:
- Energy is conserved in chemical reactions. The total energy of the system is the same before and after a reaction.
- Endothermic reaction is cooler than surrounding.
- Exothermic reaction is hotter than surrounding.
- The endothermic reaction is spontaneous on increasing temperature, and entropy often increases.
The given statements:
Statement 1 :
Many endothermic reactions that are not spontaneous at room temperature become spontaneous at high temperature.
Hence , the statement 1 is true.
Statement 2 :
Entropy of the system increases with increase in temperature.
Hence , the statement 2 is true.
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