Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?

A. Steam engine
B. Carnot engine
C. Diesel engine
D. Otto engine

A. Carnot
B. Air
C. Absorption
D. vapour-ejection

A. Less
B. More
C. Same
D. More or less depending upon the extent of work done

A. Two isothermal and two isentropic
B. Two isobaric and two isothermal
C. Two isochoric and two isobaric
D. Two isothermals and two isochoric

A. (dF)T, p 0
C. (dF)T, p = 0
D. (dA)T, v < 0

A. 0
B. +ve
C. -ve
D. ∞