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 ___________________?

Related Mcqs:

1. 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

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

   A. ∞
   B. +ve
   C. 0
   D. -ve

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

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

4. Joule-Thomson co-efficient is defined as__________________?

   A. μ = (∂P/∂T)H
   B. μ = (∂T/∂P)H
   C. μ = (∂E/∂T)H
   D. μ = (∂E/∂P)H

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

   A. 0
   B. ∞
   C. +ve
   D. -ve

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 depends on the_____________________?

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

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

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

9. During Joule-Thomson expansion of gases_________________?

   A. Enthalpy remains constant
   B. Entropy remains constant
   C. Temperature remains constant
   D. None of these

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

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