perfect gas law

The ideal gas law describes how gases behave when their pressure, volume, and temperature change. It states that for a fixed amount of gas, pressure times volume equals a constant multiplied by temperature (PV = nRT). This means if you increase the temperature, the gas particles move faster and tend to expand, increasing pressure if volume is fixed, or expanding volume if pressure is fixed. Conversely, reducing temperature slows particles and decreases pressure or volume. The law applies best to gases at low densities where particles don't interact much, providing a useful way to predict and understand gas behavior under different conditions.