Thermodynamics Test Questions

Q.  What should be the initial temperature of gas to obtain maximum cooling effect in the Joule-Kelvin expansion?

a. the initial temperature of gas should be less than the temperature corresponding to inversion point of isenthalpic curve of the expansion of gas
b. the initial temperature of gas should be more than the temperature corresponding to inversion point of isenthalpic curve of the expansion of gas
c. the initial temperature of gas should be equal the temperature corresponding to inversion point of isenthalpic curve of the expansion of gas
d. none of the above


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  When the dew point temperature is equal to the air temperature then the relative humidity is
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The purpose of superheater in a boiler is
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A system will be in a state of thermodynamic equilibrium, if it undergoes.
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  In electric resistance thermometer, the thermometric property is
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  In free expansion of gas, the work transfer is
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  A machine which can supply mechanical work continuously without consumption of any energy is called as
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The Kelvin temperature scale is independent of the certain characteristics of any substance.
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which point is taken as the standard reference point to define the Kelvin temperature scale?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Arbitrarily, the value of triple point is taken as
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The thermometric property in the Kelvin scale is _______
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  How is the entropy of a closed system increased?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The entropy generation
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  When a process followed by a system is irreversibilities, then what is the entropy generation of the system?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Which thermodynamic process cannot be plotted accurately on thermodynamic coordinates?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  When the potential gradient in a process is infinitesimal or zero, what will be the change in entropy of the universe?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  What is the result of all the spontaneous processes in nature on the entropy of the universe?
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  The process which decreases the entropy of the universe is
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  Two reversible processes undergone by a closed system between same two end states
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  How is the Helmholtz functions (F) represented?Where U represents internal energy T represents temperature S represents entropy
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts
MCQs:  ow is the Gibbs function (G) represented? Where U represents internal energy T represents temperature S represents entropy
Category: Mechanical Engineering Questions,   Published by: T-Code Scripts