A real gas behaves as an ideal gas :

at very low pressure and high temperature

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high pressure and low temperature

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high temperature and high pressure

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low pressure and low temperature

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Solution

The correct option is A at very low pressure and high temperature
Real gas obeys vanderwaals equation
$(p + \frac{n^{2} a}{V^{2}}) (V - n b) = n R T$
at high temperature and low pressure
Van der waal equation becomes approximately PV=nRT
Hence gases behave ideally at high temperature and low pressure.

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Similar questions

A gas is said to behave like an ideal gas when the relation $\frac{P V}{T}$ =constant. When do you expect a real gas to behave like an ideal gas

Assertion: Gasses obey Boyle's law at high temperature and low pressure only.

Reason: At low pressure and high temperature, gasses would behave like ideal gases.

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