Single Choice

Among the following, the correct statement is:

AAt low pressure, real gases show ideal behaviour.
BAt very large volume, real gases show ideal behaviour.
Correct Answer
CAt Boyle's temperature, real gases show ideal behaviour.
DAt very low temperature, real gases show ideal behaviour.

Solution

At very large volume, real gases show ideal behavior.
The vander waal's equation for one mole of real gas is

$$\displaystyle [P + \dfrac {a}{V^2}] (V-b) =RT$$

When volume is very large, the terms $$\displaystyle \dfrac {a}{V^2}$$ and $$\displaystyle b$$ can be neglected. hence, the equation becomes $$\displaystyle PV =RT$$ .This is ideal gas equation for one mole of gas.

Hence, option B is correct.

SIMILAR QUESTIONS

States of Matter - Gas and Liquid

A real gas is expected to exhibit maximum deviations from ideal gas law at:

States of Matter - Gas and Liquid

When is deviation more in the behaviour of a gas from the ideal gas equation $$PV= nRT$$?

States of Matter - Gas and Liquid

I : The ideal gas law does not hold under low temperatures and high pressure. II : Interactions between particles cannot be neglected under these conditions.

States of Matter - Gas and Liquid

For a gas deviation from ideal behaviour is maximum at:

States of Matter - Gas and Liquid

(a) Why do real gases not allow ideal behavior at low temperature and high pressure? (b) Why is glass considered as super-cooled liquid?

States of Matter - Gas and Liquid

When does a gas deviate the most from its ideal behavior ?

States of Matter - Gas and Liquid

A gas such as carbon monoxide would be most likely to obey the ideal gas law at:

States of Matter - Gas and Liquid

A gas behaves most like an ideal gas under conditions of:

States of Matter - Gas and Liquid

A gas behaves most like an ideal gas under conditions of:

States of Matter - Gas and Liquid

At a certain temperature for which $$RT=25 lit. atm. mol^{-1}$$, the density of a gas, in gm $$lit^{-1}$$, is $$d=2.00P+0.020 P^2$$, where P is the pressure in atmosphere. The molecular weight of the gas in gm $$mol^{-1}$$ is:

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