Question

For an ideal gas, Joule-Thomson coefficient is

• A. zero
• B. negative
• C. positive
• D. depend on molecular weight

Answer 1

Answer: (A)

As we know,
For an ideal gas, $U$(intermolecular) is equal to zero, because of absence of intermolecular force of attraction in ideal gas.
Hence, no heat is lost in the expansion and its Joule-Thomson coefficient is zero.