Q. 11.5 Two ideal gas thermometers A and B use oxygen and hydrogen respectively. The following observations are made :
Temperature Pressure Pressure
thermometer A thermometer B
Triple-point of water
Normal melting point
of sulphur
(a) What is the absolute temperature of normal melting point of sulphur as read by thermometers A and B?
As the moles of oxygen and hydrogen inside the thermometers and the volume occupied by the gases remain constant P/T would remain constant.
The triple point of water(T1) = 273.16 K
Pressure in thermometer A at a temperature equal to the triple point of water (P1) =
Pressure in thermometer A at a temperature equal to Normal melting point of sulphur (P2) =
The normal melting point of sulphur as read by thermometer A T2 would be given as
Pressure in thermometer B at a temperature equal to the triple point of water (P'1) =
Pressure in thermometer B at a temperature equal to Normal melting point of sulphur (P'2) =
The normal melting point of sulphur as read by thermometer B T'2 would be given as