Related Questions

The area under the temperature-entropy curve (T – s curve) of any thermodynamic process represents
A Heat absorbed
B Heat rejected
C Either heat absorbed or heat rejected
D None of these
A definite area or a space where some thermodynamic process takes place is known as
A Thermodynamic system
B Thermodynamic cycle
C Thermodynamic process
D Thermodynamic law
Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method
A Is more accurate in finding the number of equilibrium stages
B Accounts for the enthalpy changes in the process
C Facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method
D All of the above
For a thermodynamic process to be reversible, the temperature difference between hot body and working substance should be
A Zero
B Minimum
C Maximum
D Infinity
For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure volume plot ?
A Temperature - entropy
B Temperature - pressure
C Enthalpy - entropy
D Enthalpy - pressure
When an isolated thermodynamic system executes a process,
A Work is done
B Heat transfer takes place
C Mass flow occurs across the boundary of the system
D No chemical reaction takes place within the system
The measurement of a thermodynamic property known as temperature is based on
A First law of thermodynamics
B Second law of thermodynamics
C Zeroth law of thermodynamics
D None of these
The basis for measuring thermodynamic property of temperature is given by
A Zeroth law of thermodynamics
B First law of thermodynamics
C Second law of thermodynamics
D Third law of thermodynamics
Properties of substances like pressure, temperature and density, in thermodynamic coordinates are
A Path functions
B Point functions
C Cyclic functions
D Real functions
The criterion of the thermodynamic efficiency for rotary compressor is
A Isentropic compression
B Isothermal compression
C Polytropic compression
D None of the above

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