Isentropic process means a constant _____________________ process ?

Related Mcqs:

1. 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

2. An isentropic process is carried out at constant____________________?

   A. Volume
   B. Pressure
   C. Temperature
   D. All (A), B. and (C)

3. Isobaric process means a constant process ?

   A. Temperature
   B. Pressure
   C. Volume
   D. Entropy

4. In polytropic process (PVn = constant), if n = 1; it means a/an ______________ process?

   A. Adiabatic
   B. Reversible
   C. Isothermal
   D. None of these

5. 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

6. Joule-Thomson effect i.e., a throttling process is a constant _____________ process?

   A. Entropy
   B. Temperature
   C. Internal energy
   D. Enthalpy

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

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

8. A solute distributes itself between two non-miscible solvents in contact with each other in such a way that, at a constant temperature, the ratio of its concentrations in two layers is constant, irrespective of its total amount”. This is_________________?

   A. The distribution law
   B. Followed from Margules equation
   C. A corollary of Henry’s law
   D. None of these

9. In reactions involving solids and liquids (where change in volume is negligible), the heat of reaction at constant pressure as compared to that at constant volume is_______________?

   A. More
   B. Less
   C. Same
   D. Unpredictable; depends on the particular reaction

10. The internal energy of a gas obeying P (V – b) RT (where, b is a positive constant and has a constant Cv), depends upon its________________?

    A. Pressure
    B. Volume
    C. Temperature
    D. All A, B. & C