Which of the following formulas indicate the ideal gas law?

The ideal gas law is represented by the formula PV = nRT, where P stands for pressure, V for volume, n for the number of moles of gas, R is the universal gas constant, and T represents the temperature in Kelvin. The correct choice reflects variations of this relationship.

In the first option, PV = knT or PV = RnT aligns closely with the ideal gas law. The symbol k can represent a proportionality constant, and R is the gas constant used to derive the relationship. The inclusion of temperature in Kelvin in these formulas is crucial as it relates to the behavior of gases under different conditions.

This conceptual framework makes it clear that pressure and volume change with the number of moles of gas and temperature, which is the essence of the ideal gas law. Understanding this relationship is fundamental in fields such as chemistry and physics, where gas behaviors are analyzed under various conditions.

The other options do not represent the comprehensive relationship outlined in the ideal gas law. For example, V = kT only shows a linear relationship between volume and temperature, while PV = k indicates a proportionality that does not account for the number of moles of gas or temperature. KTV = PR mixes the variables in a way that does