A. Volume
B. Pressure
C. Temperature
D. All (A), B. and (C)
Related Mcqs:
- Isentropic process means a constant _____________________ process ?
A. Enthalpy
B. Pressure
C. Entropy
D. None of these - PVy = constant, holds good for an isentropic process, which is_________________?
A. Reversible and isothermal
B. Isothermal and irreversible
C. Reversible and adiabatic
D. Adiabatic and irreversible - Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is_______________?
A. Superheated vapour
B. Partially condensed vapour with quality of 0.9
C. Saturated vapour
D. Partially condensed vapour with quality of 0.1 - Joule-Thomson effect i.e., a throttling process is a constant _____________ process?
A. Entropy
B. Temperature
C. Internal energy
D. Enthalpy - Isobaric process means a constant process ?
A. Temperature
B. Pressure
C. Volume
D. Entropy - 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 - The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible _____________ process?
A. Isobaric
B. Isothermal
C. Adiabatic
D. None of these - Throttling process is a/an _____________ process?
A. Reversible and isothermal
B. Irreversible and constant enthalpy
C. Reversible and constant entropy
D. Reversible and constant enthalpy - In polytropic process (PVn = constant), if n = 1; it means a/an ______________ process?
A. Adiabatic
B. Reversible
C. Isothermal
D. None of these - Throttling (Joule-Thomson effect) process is a constant _____________ process?
A. Enthalpy
B. Entropy
C. Pressure
D. None of these
