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Question

During throttling which thermodynamic property does not change?

A.

Pressure

B.

Entropy

C.

Enthalpy

D.

Internal energy

Answer ( Option C)

Enthalpy

Solution

In throttling process :

·         Enthalpy remains constant.

·         Work done is zero.

·         Heat transfer is zero.

·         Highly irreversible process.

Hence, the correct option is (C). 

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