A. Is the analog of linear frictionless motion in machines
B. Is an idealised visualisation of behaviour of a system
C. Yields the maximum amount of work
D. Yields an amount of work less than that of a reversible process
Related Mcqs:
- A system undergoes a change from a given initial state to a given final state either by an irreversible process or by a reversible process, then (where, Δ S1 and Δ SR are the entropy changes of the system for the irreversible and reversible processes respectively) ?
A. Δ S1 is always Δ SR
C. Δ S1 is always > Δ SR
D. Δ S1 is always = Δ SR - Entropy change for an irreversible process taking system and surrounding together is___________________?
A. 0
B. > 0
C. < 0
D. None of these - For an irreversible process involving only pressure-volume work____________________?
A. (dF)T, p <0
B. (dF)T, p = 0
C. (dF)T, p > 0
D. (dA)T, v >0 - Entropy change for an irreversible isolated system is__________________?
A. ∞
B. 0
C. < 0
D. > 0 - In an irreversible process________________?
A. Tds = dE – dW = 0
B. dE – dW – Tds = 0
C. Tds – dE + dW < 0
D. Tds – dT + dW < 0 - In Joule-Thomson porous plug experiment, the__________________?
A. Enthalpy does not remain constant
B. Entire apparatus is exposed to surroundings
C. Temperature remains constant
D. None of these - Work done in an adiabatic process between two states depends on the__________________?
A. Rate of heat transmission
B. Initial state only
C. End states only
D. None of these - ____________ explains the equilibrium constant for any chemical reaction?
A. Henry’s law
B. Law of mass action
C. Hess’s law
D. None of these - Air-refrigeration cycle________________?
A. Is the most efficient of all refrigeration cycles
B. Has very low efficiency
C. Requires relatively large quantities of air to achieve a significant amount of refrigeration
D. Both B. and C - The value of Joule-Thomson co-efficient, in case where cooling occurs after the throttling process is________________?
A. 0
B. ∞
C. +ve
D. -ve
