%_A constant volume gas thermometer employing __________ is used to me – McqOptions

MCQOPTIONS

1.	%_A constant volume gas thermometer employing __________ is used to measure sub-zero (i.e., < 0¬¨‚àû C) temperature._%
A.	Helium
B.	Hydrogen
C.	Nitrogen
D.	None of these
Answer» B. Hydrogen

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