Explore topic-wise MCQs in Thermodynamics.

This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.

Explore topic-wise MCQs in Thermodynamics.

A cylinder/piston contains 1kg methane gas at 100 kPa, 20 C. 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 C, 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 spring loaded piston cylinder contains 1.5 kg air at 160 kPa and 27 C. 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.

Consider a small air pistol with a cylinder volume of 1 cm3 at 27 C, 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 of total 1kg steel contains 0.5 kg ammonia at 1600 kPa both masses at 120 C with minimum volume being 0.02 m3. The whole system is cooled down to 30 C by heat transfer to the ambient at 20 C, and during the process the steel keeps same temperature as the ammonia. Find the work.

A piston/cylinder contains 2kg water at 200 C, 10 MPa. The water expands in an isothermal process to a pressure of 200 kPa. Any heat transfer takes place with an ambient at 200 C and whole process is be assumed reversible. Calculate the total work.

Water at 250 C, 1000 kPa is brought to saturated vapor in a piston/cylinder with an adiabatic process. Find the specific work.

A heavily insulated cylinder/piston contains ammonia at 60 C, 1200 kPa. The piston is moved, expanding the ammonia in a reversible process until the temperature is 20 C during which 600 kJ of work is given out by ammonia. What was the initial volume of the cylinder?

Water at 250 C, 1000 kPa is brought to saturated vapour in a piston/cylinder with an isobaric process. Find the specific work.

A piston/cylinder of total 1kg steel contains 0.5 kg ammonia at 1600 kPa both masses at 120 C with minimum volume being 0.02 m³. The whole system is cooled down to 30 C by heat transfer to the ambient at 20 C, and during the process the steel keeps same temperature as the ammonia. Find the work.