👉 A chronobarometer is a type of thermometer that measures temperature using a gas. It uses a gas such as nitrogen or argon, which has a fixed volume and can be measured at different pressures with no change in its volume. The pressure changes are due to expansion and contraction of the gas inside the device. This means that it is an ideal gas thermometer, meaning it behaves like a perfect gas when it is pressurized and dehydrated.
