Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?
A. Below
B. At
C. Above
D. Either B. or C.
Thermodynamics for Chemical
Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as________________?
Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as________________?
A. P + F – C = 2
B. C = P – F + 2
C. F = C – P – 2
D. P = F – C – 2
Entropy change in case of reversible adiabatic process is________________?
Entropy change in case of reversible adiabatic process is________________?
A. Minimum
B. Zero
C. Maximum
D. Indeterminate
Fundamental principle of refrigeration is based on the ______________ law of thermodynamics?
Fundamental principle of refrigeration is based on the ______________ law of thermodynamics?
A. Zeroth
B. First
C. Second
D. Third
For a constant volume process_________________?
For a constant volume process_________________?
A. dE = CpdT
B. dE = CvdT
C. dQ = dE + pdV
D. dW = pdV
At absolute zero temperature, the _____________ of the gas is zero?
At absolute zero temperature, the _____________ of the gas is zero?
A. Pressure
B. Volume
C. Mass
D. None of these
Joule-Thomson Co-efficient at any point on the inversion curve is___________________?
Joule-Thomson Co-efficient at any point on the inversion curve is___________________?
A. ∞
B. +ve
C. 0
D. -ve
No work is done by the system, when a reaction occurs at constant__________________?
No work is done by the system, when a reaction occurs at constant__________________?
A. Volume
B. Temperature
C. Pressure
D. None of these
If atmospheric temperature and dew point are nearly equal, then the relative humidity is_______________?
If atmospheric temperature and dew point are nearly equal, then the relative humidity is_______________?
A. Zero
B. 50%
C. Almost 100%
D. unpredictable
What is the value of Joule-Thomson co-efficient for an ideal gas ?
What is the value of Joule-Thomson co-efficient for an ideal gas ?
A. +ve
B. -ve
C. 0
D. ∞