Chemical Engineering MCQs

A. Δ h = 0 and δs = 0
B. Δ h ≠ 0 and δs = 0
C. Δ h ≠ 0 and δs ≠ 0
D. Δ h = 0 and δs ≠ 0

A. Superheated
B. Desuperheated
C. Non-condensable
D. None of these

A. Momentum
B. Mass
C. Energy
D. None of these

A. Heat capacity of a crystalline solid is zero at absolute zero temperature
B. Heat transfer from low temperature to high temperature source is not possible without external
WorK
C. Gases having same reduced properties behaves similarly

A. Enhanced cop
B. Decreased cop
C. No change in the value of cop
D. Increased or decreased cop; depending upon the type of refrigerant

A. (∂t/∂v)s = (∂p/∂s)v
B. (∂t/∂p)s = (∂v/∂s)p
C. (∂p/∂t)v = (∂s/∂v)t
D. (∂v/∂t)p = -(∂s/∂p)t

A. Third law of thermodynamics
B. Second law of thermodynamics
C. Nernst heat theorem
D. Maxwell’s relations

A. (∂p/∂v)s = (∂p/∂v)t
B. (∂p/∂v)s = [(∂p/∂v)t]y
C. (∂p/∂v)s = y(∂p/∂v)t
D. (∂p/∂v)s = 1/y(∂p/∂v)t

A. Violates second law of thermodynamics
B. Involves transfer of heat from low temperature to high temperature
C. Both a. and b
D. Neither a. nor b

A. -94 kcal
B. > -94 kcal
C. < – 94 kcal
D. Zero