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# Calculate the heat of the formation $(\Delta H)$ of $CO$ (in kcal) from the following data : <br> $I. \; C_{(graphite)} + O_{2(g)} \to CO_{2(g)} \; \; \; \; \; \; \Delta H = -94 \; kcal$ <br> $II. \; CO_{(g)} + \frac{1}{2}O_{2(g)} \to CO_{2(g)} \; \; \; \;\; \; \Delta H = -68\; kcal$

( A ) $-162$
( B ) $-82$
( C ) $-26$
( D ) $-1.3$