SATHEE: Chemical Thermodynamics Question 13

Chemical Thermodynamics Question 13

Question: If the enthalpy of vaporization for water is 186.5 kJ $m o l^{- 1}$ , the entropy of its vaporization will be [CPMT 1988; DCE 2000]

Options:

A) $0.5, J K^{- 1} m o l^{- 1}$

B) $1.0, J K^{- 1} m o l^{- 1}$

C) $1.5, J K^{- 1} m o l^{- 1}$

D) $2.0, J K^{- 1} m o l^{- 1}$

Show Answer

Answer:

Correct Answer: A

Solution:

$Δ S_{v a p} = 186.5 / 373 = 0.5 J K^{- 1}, m o l^{- 1}$ .

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Chemical Thermodynamics Question 13

Question: If the enthalpy of vaporization for water is 186.5 kJ mol−1 , the entropy of its vaporization will be [CPMT 1988; DCE 2000]

Options:

Answer:

Solution:

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Question: If the enthalpy of vaporization for water is 186.5 kJ $m o l^{- 1}$ , the entropy of its vaporization will be [CPMT 1988; DCE 2000]