During Joule-Thomson expansion of gases_________________?

Related Mcqs:

1. Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is ___________________?

   A. 0
   B. ∞
   C. +ve
   D. -ve

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

   A. Below
   B. At
   C. Above
   D. Either B. or C.

3. Joule-Thomson effect i.e., a throttling process is a constant _____________ process?

   A. Entropy
   B. Temperature
   C. Internal energy
   D. Enthalpy

4. The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?

   A. 0
   B. ∞
   C. +ve
   D. -ve

5. Joule-Thomson co-efficient depends on the_____________________?

   A. Pressure
   B. Temperature
   C. Both A. & B
   D. Neither A. nor B

6. What is the value of Joule-Thomson co-efficient for an ideal gas ?

   A. +ve
   B. -ve
   C. 0
   D. ∞

7. Joule-Thomson Co-efficient at any point on the inversion curve is___________________?

   A. ∞
   B. +ve
   C. 0
   D. -ve

8. Throttling (Joule-Thomson effect) process is a constant _____________ process?

   A. Enthalpy
   B. Entropy
   C. Pressure
   D. None of these

9. Joule-Thomson co-efficient for a perfect gas is_____________________?

   A. Zero
   B. Positive
   C. Negative
   D. None of these

10. The Joule-Thomson co-efficient is defined as (∂T/∂P)H. Its value at the inversion point is__________________?

    A. ∞
    B. 1
    C. 0
    D. -ve