Two ideal gas thermometers A and B use oxygen and hydrogen respectively. The following observations are made
Temperature | Pressure thermometer A | Pressure thermometer B |
Triple-point of water | 1.250×105Pa | 0.200×105Pa |
Normal melting point of sulphur | 1.797×105Pa | 0.287×105Pa |
(a) What is the absolute temperature of normal melting point of sulphur as read by thermometers A and B ?
(b) What do you think is the reason behind the slight difference in answers of thermometers A and B ? (The thermometers are not faulty) What further procedure is needed in the experiment to reduce the discrepancy between the two readings ?