A) A real gas behaves like an ideal gas over a wide range of pressure(\[\sim 100\]atm) at Boyle point.
B) A real gas behaves like an ideal gas over a wide range of pressure (\[\sim 100\]atm) at critical temperature of the gas.
C) \[{{\left( \frac{\delta u}{\delta V} \right)}_{T}}=0\]for an ideal gas.
D) \[{{\left( \frac{\delta u}{\delta V} \right)}_{T}}=\frac{a}{{{V}^{2}}}\]for a real gas obeying van der Waals' equation.
Correct Answer: B
Solution :
(i) At the Boyle temperature, the real gas behaves ideally over a wide range of pressure, because the effects of the size of molecules and intermolecular forces roughly compensate each other. (ii) A real gas behaves like an ideal gas over a wide range of pressure above critical temperature of gas
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