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SSC-JE ME || Thermodynamics Quiz 2
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Question 1
An ideal gas of mass 0.5 kg has a pressure of 600 kPa, a temperature of 77 and a volume of 0.08 m3. This gas undergoes an irreversible process to a final pressure of 600 kPa and final volume of 0.12 m3, during which the heat addition and work done on gas are 2 kJ and 30 kJ respectively. The value of Cv of gas is
Question 2
Which of the following represents the perpetual motion of the first kind
Question 3
A closed system is one in which ____.
Question 4
Which of the following statements are TRUE with respect to heat and work?
(i) They are boundary phenomena
(ii) They are exact differentials
(iii) They are path functions
Question 5
What is the velocity of steam (in m/sec) at exit across a steam whistle which is perfectly insulated and does not perform any work and undergoes a drop of 0.2 kJ/kg in enthalpy from entry to exit?
Question 6
In an internal combustion engine, during the compression stroke the heat rejected to the cooling water is 50 kJ/kg and the work input is 100 kJ/kg. What is the change in internal energy of the working fluid ?
Question 7
A closed gaseous system undergoes a reversible constant pressure process at 2 bar in which 100 kJ of heat is rejected and the volume changes from 0.2 m3 to 0.1 m3. The change in the internal energy of the system is
Question 8
For a system of ideal gas, in a reversible isothermal process the heat transferred to the system is 0.75 kW. The internal energy at the initial point is 2.05 kJ/s. Determine the work done during the process.
Question 9
When the heat transfer into a system is Greater than the work transfer out of the system, then
Question 10
Calculate the net heat interaction (kJ) for the cycle shown in the figure.
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