How much heat will be required to make `2kg` of calcium carbide `(CaC_(2))` according to the following reaction?
`CaO(s) +3C(s) rarr CaC_(2)(s) +CO(g)`
The heats of formations of `CaO(s), CaC_(2)(s)`, and `CO(g)` are `-151.0,-14.0`,and `-26.0 kcal`, respectively.

Explanation

To determine the heat required to produce 2 kg of calcium carbide (CaC₂) from the given reaction, we will follow these steps:

### Step 1: Write the Reaction and Identify Given Data
The reaction is:
\[ \text{CaO(s)} + 3\text{C(s)} \rightarrow \text{CaC}_2\text{(s)} + \text{CO(g)} \]

Given heats of formation:
- \( \Delta H_f^\circ \) of CaO(s) = -151.0 kcal
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