Chemical Thermodynamics Question 18
Question: Which of the following is true for the reaction $ H_2O(l) $ ⇌ $ H_2O(g) $ at $ 100^{o}C $ and 1 atmosphere [KCET 1991; AIIMS 1996]
Options:
A) $ \Delta E=0 $
B) $ \Delta H=0 $
C) $ \Delta H=\Delta E $
D) $ \Delta H=T\Delta S $
Show Answer
Answer:
Correct Answer: D
Solution:
At equilibrium, $ \Delta G $ = 0
Hence 0 = $ \Delta H-T\Delta S $ or $ \Delta H=T\Delta S $ .
