For the reaction,
`X_(2)O_(4)(l)rarr2XO_(2)(g),DeltaE=2.1Kcal` ,
`DeltaS=20cal//K` at `300K` . Hence `DeltaG` is

Options

A. `2.7 kcal`
B. `-2.7 kcal`
C. `9.3 kcal`
D. `-9.3 kcal`

Explanation

To calculate the Gibbs free energy change (ΔG) for the reaction given, we will follow these steps:

### Step 1: Identify the reaction and given values
The reaction is:
\[ X_2O_4(l) \rightarrow 2XO_2(g) \]
Given:
- \( \Delta E = 2.1 \text{ kcal} \)
- \( \Delta S = 20 \text{ cal/K} \)
...