According to Charles's law

Options

A. `(dV//dT)_(P)=K`
B. `(dV//dT)_(P)=-K`
C. `(dV//dT)_(P)=-K//T`
D. `V prop T`

Explanation

### Step-by-Step Solution:

1. **Understanding Charles's Law**:
Charles's Law states that the volume (V) of an ideal gas is directly proportional to its absolute temperature (T) when the pressure (P) is held constant. This can be mathematically expressed as:
\[ V \propto T \quad \text{(at constant pressure)} \]

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