__________ decreases during adiabatic throttling of a perfect gas.

The adiabatic throttling process of a perfect gas is one of constant enthalpy

A

In which there is a temperature drop

B

Which is exemplified by a non-steady flow expansion

C

Which can be performed in a pipe with a constriction

D

In which there is an increase in temperature

The temperature at which a gas, when subjected to Joule-Thomson expansion, neither cools or heats up, is termed as the __________ temperature. Above this temperature the gas heats up on throttling and below this the gas cools down.

A

Isotactic

B

Saturation

C

Inversion

D

Throttling

All gases except __________ shows a cooling effect during throttling process at atmospheric temperature and pressure.

A

Oxygen

B

Nitrogen

C

Air

D

Hydrogen

After throttling, gas temperature

A

Decreases

B

Increases

C

Remains same

D

May increase or decrease ; depends on the nature of the gas

During throttling process

A

Heat exchange does not take place

B

No work is done by expanding steam

C

There is no change of internal energy of steam

D

All of the above

All gases during throttling process at atmospheric temperature and pressure show a cooling effect except

A

CO₂

B

H₂

C

O₂

D

N₂

The throttling process is __________ process.

A

Reversible

B

Irreversible

C

Reversible or irreversible

D

None of these

Joule-Thomson effect i.e., a throttling process is a constant __________ process.

A

Entropy

B

Temperature

C

Internal energy

D

Enthalpy

Throttling (Joule-Thomson effect) process is a constant __________ process.

A

Enthalpy

B

Entropy

C

Pressure

D

None of these

Throttling process is a/an __________ process.

A

Reversible and isothermal

B

Irreversible and constant enthalpy

C

Reversible and constant entropy

D

Reversible and constant enthalpy

__________ decreases during adiabatic throttling of a perfect gas.

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