Question

State whether true or false :
A gas thermometer measures temperature with the variation in pressure or volume of a gas.

• A. True
• B. False

Answer 1

The correct option is A True

A gas thermometer measures temperature by the variation in volume or pressure of a gas.This thermometer functions by Charles's Law. Charles's Law states that when the temperature of a gas increases, so does the volume.

Using Charles's Law, the temperature can be measured by knowing the volume of gas at a certain temperature by using the formula, written below. Translating it to the correct levels of the device that is holding the gas. This works on the same principle as mercury thermometers.

$V\propto T,$

or

$\frac{V}{T}=k$

T is the temperature.

V is the volume.