Chemical Thermodynamics Question 468
Question: Which of the following defines enthalpy of solution-
Options:
A) $ H_2O(l)\xrightarrow[{}]{{}}{{H}^{+}}(aq)+O{{H}^{-}}(aq) $
B) $ NH_4Cl(s)\xrightarrow[{}]{{}}NH_4^{+}(aq)+C{{l}^{-}}(aq) $
C) $ CuSO_4\cdot 5H_2O(s)+H_2O\xrightarrow[{}]{{}}CuSO_4(aq) $
D) $ CuSO_4(s)+5H_2O\xrightarrow[{}]{{}}CuSO_4\cdot 5H_2O(s) $
Show Answer
Answer:
Correct Answer: C
Solution:
- $ H_2O(l)\xrightarrow[{}]{{}}{{H}^{+}}(aq)+\overset{\Theta }{\mathop{OH}},(aq) $
Enthalpy of dissociation $ NH_4Cl(s)\xrightarrow[{}]{{}}NH_4^{+}(aq)+C{{l}^{-}}(aq) $
Enthalpy of dissociation $ CuSO_4\cdot 5H_2O(s)+H_2O\xrightarrow[{}]{{}}CuSO_4(aq) $
Enthalpy of solution $ CuSO_4(s)+5H_2O\xrightarrow[{}]{{}}CuSO_4\cdot 5H_2O(s) $
Enthalpy of hydration
