\[C+{{O}_{2}}\to C{{O}_{2}};\,\Delta H=X\] \[CO+\frac{1}{2}{{O}_{2}}\to C{{O}_{2}};\,\Delta H=Y\] Then the heat of formation of \[CO\] is [BHU 1997; DPMT 2002]

\[C+{{O}_{2}}\to C{{O}_{2}};\,\Delta H=X\] �

1.	\[C+{{O}_{2}}\to C{{O}_{2}};\,\Delta H=X\] \[CO+\frac{1}{2}{{O}_{2}}\to C{{O}_{2}};\,\Delta H=Y\] Then the heat of formation of \[CO\] is [BHU 1997; DPMT 2002]
A.	\[X-Y\]
B.	\[Y-2X\]
C.	\[X+Y\]
D.	\[2X-Y\]
Answer» B. \[Y-2X\]

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\[C+{{O}_{2}}\to C{{O}_{2}};\,\Delta H=X\] \[CO+\frac{1}{2}{{O}_{2}}\to C{{O}_{2}};\,\Delta H=Y\] Then the heat of formation of \[CO\] is [BHU 1997; DPMT 2002]

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