Mechanical Engineering MCQs

Page No. 101

Gases have___________________?


aonly one value of specific heat


btwo values of specific heat


cthree values of specific heat


dno value of specific heat



Extensive property of a system is one whose value______________________?


adepends on the mass of the system like volume


bdoes not depend on the mass of the system, like temperature, pressure, etc.


cis not dependent on the path followed but on the state


dis dependent on the path followed and not on the state



The statement that molecular weights of all gases occupy the same volume is known as________________?


aAvogadro’s hypothesis


bDalton’s law


cGas law


dLaw of thermodynamics



If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to__________________?


a+ v


b– ve


czero


dpressure x volume


View Answer zeropressure x volume

Properties of substances like pressure, temperature and density, in thermodynamic coordinates are__________________?


apath functions


bpoint functions


ccyclic functions


dreal functions


View Answer point functions

According to Avogadro’s law, for a given pressure and temperature, each molecule of a gas_________________?


aoccupies volume proportional to its molecular weight


boccupies volume proportional to its specific weight


coccupies volume inversely proportional to its molecular weight


doccupies same volume


View Answer occupies same volume

Which of the following is the property of a system___________________?


apressure and temperature


binternal energy


cvolume and density


dall of the above


View Answer all of the above

Which of the following is not the intensive property___________________?


apressure


btemperature


cdensity


dheat


View Answer heat

Work done in an adiabatic process between a given pair of end states depends on__________________?


athe end states only


bparticular adiabatic process


cthe value of index n


dthe value of heattransferred


View Answer the end states only

Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure___________________?


aenthalpy


bvolume


cmass


dentropy


View Answer volume

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