The Relationship between P, V and T

The relationship between gas volume (V), pressure (P), and temperature (T) can be expressed by the ideal gas law:

(P x V) / T = constant

Where P = pressure of gas, V = volume occupied, and T = temperature.

In simpler terms, if volume is constant, an increase in temperature results in a proportional increase in pressure. If pressure is constant, an increase in temperature results in a proportional increase in volume. Inversely, if volume is decreased and pressure remains constant, temperature must decrease. Basically, pressure and volume are directly proportional to temperature and inversely proportional to each other.

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