Find the heat of formation of ethyl alcohol for following data
`C(s) +O_(2)(g) rarr CO_(2)(g) DeltaH =- 94 kcal`
`H_(2)(g) +1//2O_(2)(g) rarr H_(2)O(l), DeltaH =- 68 kcal`
`C_(2)H_(5)OH(l)+3O_(2)(g) rarr 2CO_(2)(g) +3H_(2)O(l) DeltaH =- 327 kcal`

Explanation

To find the heat of formation of ethyl alcohol (C₂H₅OH), we can use Hess's law, which states that the total enthalpy change for a reaction is the sum of the enthalpy changes for the individual steps of the reaction.

### Step-by-Step Solution:

1. **Write the target reaction**:
We want to find the heat of formation for ethyl alcohol:
\[
C(s) + \frac{3}{2}O_2(g) + 3H_2(g) \rightarrow C_2H_5OH(l)
...