Sun21November0437PM 3

Temperature can be measured using a Bourdon gauge.

Which gas law best explains the physical principles of this type of thermometer?

(Please select 1 option)

Boyle's law

Henry's Law

Gay-Lussac's law

Dalton's Law Incorrect answer selected

Charles's law This is the correct answer

Explanation

The gas laws apply to ideal gases.

Boyle's law: At constant temperature the volume of a given mass of gas varies inversely with pressure.

PV=k

Charles's law: At constant pressure the volume of a given mass of gas varies directly with absolute temperature (Kelvin): The volume of gas increases and expands the cross sectional diameter of the spriral tube (pressure remaining constant as a result).

V/T = k

Gay-Lussac's law states that for a given amount of gas held at constant volume, the pressure is proportional to the absolute temperature: The volume of gas increases with temperature so cannot apply to a Bourdon gauge.

Pressure (P) / Temperature (T) = Constant (k)

Dalton's law of partial pressure: The pressure of a mixture of gases is equal to the sum of the pressures of all of the constituent gases alone. Mathematically, this can be represented as:

PressureTotal = Pressure1 + Pressure2 ... Pressuren

Henry's law: At a constant temperature, the amount of a given gas dissolved in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid.

Answer Statistics

1

37%

2

8%

3

15%

4

7%

5

35%

Times answered: 234