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Question

For which of the following substances, the internal energy and enthalpy are the functions of temperature only?

निम्नलिखित में से किस पदार्थ के लिए आंतरिक ऊर्जा और एन्थैल्पी केवल तापमान के कार्य हैं?

A.

Any gas

B.

Saturated steam

C.

Water

D.

Perfect gas

Answer ( Option D)

Perfect gas

Solution

For perfect/Ideal gas, the internal energy (U) and enthalpy (H) are the functions of temperature (T) only.

i.e, U = F (T), H = F (T) 

Hence, the correct option is (D). 

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