First law of thermodynamics deals with the Irreversible processes only Direction of energy transfer Reversible processes only None of these TRUE ANSWER : ? YOUR ANSWER : ?
PVγ = Constant (where, γ = Cp/Cv) is valid for a/an __________ process. Isobaric Adiabatic Isentropic Isothermal TRUE ANSWER : ? YOUR ANSWER : ?
Duringthe phase transition, __________ changes. Volume All of these Temperature Pressure TRUE ANSWER : ? YOUR ANSWER : ?
For a spontaneous process, free energy Increases Decreases whereas the entropy increases And entropy both decrease Is zero TRUE ANSWER : ? YOUR ANSWER : ?
When a system is in equilibrium for all possible processes, the differential or finite change of entropy is None of these = 0 > 0 < 0 TRUE ANSWER : ? YOUR ANSWER : ?
A/an __________ system is exemplified by a vessel containing a volatile liquid in contact with its vapor. Isolated None of these Open Closed TRUE ANSWER : ? YOUR ANSWER : ?
All gases during throttling process at atmospheric temperature and pressure show a cooling effect except CO₂ O₂ N₂ H₂ TRUE ANSWER : ? YOUR ANSWER : ?
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 Saturated vapour Superheated vapour Partially condensed vapour with quality of 0.1 Partially condensed vapour with quality of 0.9 TRUE ANSWER : ? YOUR ANSWER : ?
In case of a close thermodynamic system, there is __________ across the boundaries. No mass transfer but heat transfer None of these No heat and mass transfer Mass and energy transfer TRUE ANSWER : ? YOUR ANSWER : ?