1.

For complete combustion of ethanol, \[{{C}_{2}}{{H}_{5}}OH\left( l \right)+3{{O}_{2}}\left( g \right)\xrightarrow{{}}2C{{O}_{2}}\left( g \right)+3{{H}_{2}}O\left( l \right),\] the amount of heat produced as measured in bomb calorimeter, is \[1364.47\text{ }kJ\text{ }mo{{l}^{-1}}\] at\[25{}^\circ C\]. Assuming ideality the enthalpy of combustion, \[{{\Delta }_{c}}H\], for the reaction will be: \[\left( R=8.314\text{ }kJ\,mo{{l}^{-1}} \right)\]

A. \[-1366.95\text{ }kJ\text{ }mo{{l}^{-1}}\]
B. \[-1361.95\text{ }kJ\,mo{{l}^{-1}}\]
C. \[-1460.95\text{ }kJ\,mo{{l}^{-1}}\]
D. \[-1350.50\text{ }kJ\,mo{{l}^{-1}}\]
Answer» B. \[-1361.95\text{ }kJ\,mo{{l}^{-1}}\]


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