Difference between the heats of reaction at constant pressure and a constant volume for the reaction `2C_(6)H_(6)(l) + 15O_(2)(g) rarr 12CO_(2)(g) + 6H_(2)O(l)` at `25^(@)C` in `kJ` is

Options

A. `-7.43`
B. `+3.72`
C. `-3.72`
D. `+7.43`

Explanation

To find the difference between the heats of reaction at constant pressure (\( \Delta H \)) and constant volume (\( \Delta U \)) for the reaction:

\[ 2C_{6}H_{6}(l) + 15O_{2}(g) \rightarrow 12CO_{2}(g) + 6H_{2}O(l) \]

at \( 25^\circ C \), we can follow these steps:

### Step 1: Identify the reaction and the number of moles of gaseous products and reactants.

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