Question

how could you physically measure the temperature of an ideal gas directly? a) by the bending of a bimetallic strip b) by a change in the volume of the ideal gas c) by a change in the electrical resistivity of the ideal gas

Explanation:

A bimetallic - strip thermometer works by the differential expansion of two metals bonded together in response to temperature changes and can be used to measure the temperature of a gas. The volume of an ideal gas is related to temperature by the ideal gas law (PV = nRT), but measuring volume directly to infer temperature is an indirect method. Electrical resistivity of an ideal gas is not a common or direct way to measure its temperature.

Answer:

a) By the bending of a bimetallic strip