A) increases
B) remains unchanged
C) changes erratically
D) reverses in sign
Correct Answer: D
Solution :
Inversion temperature is the temperature to which one junction of a thermocouple must be raised in order to make the thermoelectric electromotive force in the circuit equal to zero, when the other junction of the thermocouple is held at a constant low temperature. Hence, inversion temperature is the temperature at which the Joule-Thomson effect of a gas change sign.
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