A. No heat and mass transfer
B. No mass transfer but heat transfer
C. Mass and energy transfer
D. None of these
Related Mcqs:
- The thermodynamic law, PVy = constant, is not applicable in case of______________?
A. Ideal compression of air
B. Free expansion of an ideal gas
C. Adiabatic expansion of steam in a turbine
D. Adiabatic compression of a perfect gas - A thermodynamic system is taken from state A to B along ACB and is brought back to A along BDA as shown below in the P-V diagram. The net work done during the complete cycle is given by the area covered by_________________?
A. P1ACBP2P1
B. ACBB1A1A
C. ACBDA
D. ADBB1A1A - For a thermodynamic system containing ‘x’ chemical species, the maximum number of phases that can co-exist at equilibrium is_________________?
A. x
B. x + 1
C. x + 2
D. x + 3 - Measurement of thermodynamic property of temperature is facilitated by ____________ law of thermodynamics?
A. 1st
B. Zeroth
C. 3rd
D. None of these - Which law of the thermodynamics provides basis for measuring the thermodynamic property ?
A. First law
B. Zeroth law
C. Third law
D. Second law - Which of the following is a thermodynamic property of a system ?
A. Concentration
B. Mass
C. Temperature
D. Entropy - Extensive properties of a thermodynamic system depend upon the _____________ of the system?
A. Specific volume
B. Temperature
C. Mass
D. Pressure - The only suitable method for hardening the low carbon steel is case hardening. Which of the following is a case hardening process ?
A. Cyaniding
B. Sherardizing
C. Spheroidising
D. None of these - Internal energy is equal to the heat absorbed in case of a/an ______________ process?
A. Constant volume
B. Polytropic
C. Adiabatic
D. Constant pressure - High pressure steam is expanded adiabatically and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process ?
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
