The standard absolute entropy of a substance, `(S^(Theta))` is the entropy of the substance in its standard state at `1` atm, temperature being

Options

A. `0K`
B. `298K`
C. `398K`
D. `273 K`

Explanation

To solve the question regarding the standard absolute entropy of a substance, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition**: The standard absolute entropy, denoted as \( S^{\Theta} \), refers to the entropy of a substance in its standard state. The standard state is defined under specific conditions.

2. **Identify Standard Conditions**: The standard state conditions typically include a standard pressure of 1 atm. Additionally, the standard temperature is also defined.

...