Concept:The general gas equation is formed by combining Boyle's Law, Charles's Law, and Avogadro's Law into a single proportional expression.
Solution:- Combining \( V \propto \frac{1}{P} \), \( V \propto T \), and \( V \propto n \) yields the equation \( PV = nRT \).
- This combined equation assumes that there are no intermolecular forces and that the molecular volume is strictly zero.
- Because it perfectly describes the theoretical behavior of an ideal gas, the general gas equation is universally known as the Ideal gas equation.
Why other options are incorrect:- Option A: The van der Waals equation corrects the ideal gas law for real gases (\( (P + a/v^2)(V-nb) = RT \)).
- Option C: It is explicitly for ideal gases, not non-ideal.
- Option D: The van 't Hoff equation relates equilibrium constants to temperature changes in physical chemistry, unrelated to basic gas state variables.
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