Thermodynamics Test 4

A steadily flowing ideal gas undergoes adiabatic throttling where T₁ is temperature before throttling and T₂ is temperature after throttling. Assuming no change in kinetic and potential energy due to throttling, which of the following is correct?

Question 1/10

The rate of heat transfer is constant

The rate of work transfer is constant

The ratio of mass flow at inlet and outlet is same

All of these

Question 2/10

much less than

much greater than

equal to

none of these

Question 3/10

Thermodynamics properties

States of thermodynamics systems

Mode of energy transfer

None of the above

Question 4/10

T1 = T2

T2 = γT1, γ: specific heat ratio

T1 < T2

T1 = γT2, γ: specific heat ratio

Question 5/10

20 m/s

40 m/s

30 m/s

50 m/s

Question 6/10

maximise compressor work

minimise compressor work

maximise compressor temperature

maximise power consumption

Question 7/10

Mechanical efficiency

Kinematic efficiency

Thermal efficiency

Simple efficiency

Question 8/10

An irreversible process

Unrestricted expansion

Non–flow quasi-static process

The arrangement where work is done on the gas as the paddlewheel turns by a falling weight

Question 9/10

Work is direct energy

Work useful form of energy

While work can be fully converted into heat, heat cannot be fully converted into work

Its often required to convert heat into work and not vice versa

Question 10/10

Intensive properties

Extensive properties

Point functions

Path functions

T₁ = T₂

T₂= γT₁, γ: specific heat ratio

T₁ < T₂

T₁= γT₂, γ: specific heat ratio