A) \[x>y\]
B) \[x<y\]
C) \[x=y\]
D) \[x\ge y\]
Correct Answer: B
Solution :
Enthalpy of combustion of \[C{{H}_{3}}OH\] is \[C{{H}_{3}}OH+\frac{3}{2}{{O}_{2}}\xrightarrow{{}}C{{O}_{2}}+2{{H}_{2}}O\], \[\Delta H_{e}^{o}=-726\,kJ/mol\] (Given, it is y) Enthalpy of combustion of \[C{{H}_{4}}\] is \[C{{H}_{4}}(g)+2{{O}_{2}}(g)\xrightarrow{{}}C{{O}_{2}}(g)+2{{H}_{2}}O(l)\], \[\Delta H_{c}^{o}=-890\,kJ/mol\] (Given, it is x) Hence, \[x<y\]
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