Which of the following is/are correct about Charles's law?

Options

A. `(delV//delT)_(P)=Constant`
B. `V prop T` at constant `P` and `n`
C. `V prop P` at constant `T`, `n`
D. `V prop T` is constant at constant `P`, `n`

Explanation

To determine which statements are correct about Charles's Law, we can analyze each option based on the principles of the law itself. Charles's Law states that the volume (V) of an ideal gas is directly proportional to its absolute temperature (T) when the pressure (P) and the number of moles (n) of the gas are held constant.

### Step-by-Step Solution:

1. **Understanding Charles's Law**:
- Charles's Law can be mathematically expressed as:
\[
V \propto T \quad \text{(at constant P and n)}
...