1.

The enthalpy change states for the following processes are listed below:\[C{{l}_{2}}(g)\to 2Cl(g);\]\[242.3kJ\text{ }mo{{l}^{-1}}\]\[{{I}_{2}}(g)\to 2I(g);\]\[151.0kJ\text{ }mo{{l}^{-1}}\]\[ICl(g)\to I(g)+Cl(g);\]\[211.3kJ\text{ }mo{{l}^{-1}}\]\[{{I}_{2}}(s)\to {{I}_{2}}(g);\]\[62.76kJ\text{ }mo{{l}^{-1}}\]Given that the standard states for iodine chlorine are \[{{I}_{2}}(s)\] and\[C{{l}_{2}}(g)\], the standard enthalpy o formation for ICl (g) is:

A. +244.8 kJ \[mo{{l}^{-1}}\]      
B. -14.6 kJ \[mo{{l}^{-1}}\]
C.  -16.8kJ \[mo{{l}^{-1}}\]
D. + 16.8kJ \[mo{{l}^{-1}}\]
Answer» E.


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