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A gas is said to behave like an ideal gas when the relation PV/T = constant. When do you expect a real gas to behave like an ideal gas?

(a) When the temperature is low.

(b) When both the temperature and pressure are low.

(c) When both the temperature and pressure are high.

(d) When the temperature is high and pressure is low.

1 Answer

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Best answer

The correct option is : (d) When the temperature is high and pressure is low.

Explanation:

At high temperature and low pressure the effect of a/V2 and b is negligible.

As we know,

PV = nRT                         (Ideal gas equation)

Hence gas shows ideal behaviour.

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