Helium contained in a cylinder at ambient conditions, 100 kPa, 20¬¨¬®‚Äö√†√ªC, is compressed in a reversible isothermal process to 600 kPa, after which the gas is expanded back to 100 kPa in a reversible adiabatic process. Calculate the net work per kilogram of helium.$#

Helium contained in a cylinder at ambient conditions, 100 kPa, 20¬¨�

1.	Helium contained in a cylinder at ambient conditions, 100 kPa, 20¬¨¬®‚Äö√†√ªC, is compressed in a reversible isothermal process to 600 kPa, after which the gas is expanded back to 100 kPa in a reversible adiabatic process. Calculate the net work per kilogram of helium.$#
A.	-623.6 kJ/kg
B.	+467.4 kJ/kg
C.	-1091.0 kJ/kg
D.	none of the mentioned
Answer» B. +467.4 kJ/kg

Discussion

No Comment Found

Related MCQs

A_SPRING_LOADED_PISTON_CYLINDER_CONTAINS_1.5_KG_AIR_AT_160_KPA_AND_27¬¨¬®‚ÄÖ√†√ªC._IT_IS_HEATED_IN_A_PROCESS_WHERE_PRESSURE_IS_LINEAR_IN_VOLUME,_P_=_A_+_BV,_TO_TWICE_THE_INITIAL_VOLUME_WHERE_IT_REACHES_900_K._FIND_THE_WORK_ASSUMING_A_SOURCE_AT_900_K.?$#
A cylinder/piston contains 1kg methane gas at 100 kPa, 20¬¨¬®‚Äö√†√ªC. The gas is compressed reversibly to a pressure of 800 kPa. Calculate the work required if the process is adiabatic.$#
Helium contained in a cylinder at ambient conditions, 100 kPa, 20¬¨¬®‚Äö√†√ªC, is compressed in a reversible isothermal process to 600 kPa, after which the gas is expanded back to 100 kPa in a reversible adiabatic process. Calculate the net work per kilogram of helium.$#
One kg of steam at 200 kPa with 20% quality is heated at constant pressure to 400¬¨¬®‚Äö√†√ªC. Calculate the work done by the system .$
A gas confined in a piston-cylinder is compressed in a quasi-static process from 80 kPa and 0.1 m3 to 400 kPa and 0.03m3. If the pressure and volume are related by PV^n= constant, calculate the work involved in the process.
A piston/cylinder contains air at 100 kPa, 300 K. It is now compressed in a reversible adiabatic process to a volume 7 times as small. Use constant heat capacity and find the specific work.
Consider a small air pistol with a cylinder volume of 1 cm3 at 27¬¨¬®‚Äö√†√ªC, 250 kPa. The bullet acts as a piston and is released so the air expands in an adiabatic process. If the pressure should be 100 kPa as the bullet leaves the cylinder find the work done by the air?#
A piston/cylinder contains air at 400 K, 100 kPa which is compressed to a final pressure of 1000 kPa. Consider the process to be a reversible isothermal process. Find the specific work.
A piston/cylinder contains air at 400 K, 100 kPa which is compressed to a final pressure of 1000 kPa. Consider the process to be a reversible adiabatic process. Find the specific work.
A mass of 1 kg of air contained in a cylinder at 1000 K, 1.5 MPa, expands in a reversible isothermal process to a volume 10 times larger. Calculate the heat transfer during the process.

Helium contained in a cylinder at ambient conditions, 100 kPa, 20¬¨¬®‚Äö√†√ªC, is compressed in a reversible isothermal process to 600 kPa, after which the gas is expanded back to 100 kPa in a reversible adiabatic process. Calculate the net work per kilogram of helium.$#

Discussion

No Comment Found

Related MCQs

Reply to Comment