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CBSE Class 11-science Answered

5 If the enthalpy of formation of HCl (g) and Cl– (aq) are –92.3 kJ/mol and – 167.3 kJ/mol, find the enthalpy of solution of hydrogen chloride gas
Asked by kupadhyay2394 | 03 Nov, 2020, 12:16: PM
answered-by-expert Expert Answer
Equations for enthalpy of formation of HCl is given-
H subscript 2 plus C l subscript 2 rightwards arrow 2 H C l space space space space space space increment H subscript 1 equals negative 92.3 space K J divided by m o l

C l subscript 2 rightwards arrow 2 C l to the power of minus space space space space space space space space space space space space space increment H subscript 2 equals negative 167.3 space K J divided by m o l

minus 92.3 plus space increment H subscript s o l u t i o n end subscript equals negative 167.44
increment H subscript s o l u t i o n end subscript equals negative 167.44 plus 92.3
space space space space space space equals negative 75.14 space K J divided by m o l
Answered by Ravi | 05 Nov, 2020, 10:26: AM
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