Calculate the enthalpy change accompanying the transformation of C(graphite) to C(diamond). Given that the enthalpies of combustion of graphite and diamond are 393.5 and 395.4 KJ respectively

Explanation

To calculate the enthalpy change accompanying the transformation of carbon from graphite to diamond, we can use the enthalpies of combustion provided for both forms of carbon. Here’s a step-by-step solution:

### Step 1: Write the combustion reactions for both forms of carbon.
1. **For Graphite:**
\[ C(\text{graphite}) + O_2 \rightarrow CO_2(g) \quad \Delta H = -393.5 \text{ kJ} \]

...