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Chapter 3: Problem 12

A gas is said to behave like an ideal gas when the relation \(P V / T=\) 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

Short Answer

Expert verified
The correct answer is (d). A real gas is expected to behave like an ideal gas when the temperature is high and the pressure is low.

Step by step solution

01

Understanding when gases behave ideally

Ideal gas behavior is seen when the particles of the gas do not interact much with each other. This condition is fulfilled when the gases are at a high temperature and low pressure because under these conditions the particles of the gas are far apart from each other. Therefore, they do not attract or repel each other significantly.
02

Analyzing the options

Option (d) states 'When the temperature is high and pressure is low'. This option matches our analysis from Step 1 that gases behave ideally under conditions of high temperature and low pressure.

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Most popular questions from this chapter

An ideal gas, obeying kinetic theory of gases, can be liquefied: (a) It cannot be liquefied at any \(P\) and \(T\) (b) Its pressure is more than \(P\) at a temperature less than \(T\) (c) Its temperature is more than critical temperature \(T\) (d) Its pressure is more than critical pressure \(P\)

According to the van der Waals correction to get the pressure of ideal gas in observed pressure a definite fraction for correction is (a) subtracted (b) added (c) divided (d) unchanged

The gas which can be liquefied under high pressure and \(40^{\circ} \mathrm{C}\) is (a) nitrogen (b) hydrogen (c) oxygen (d) ammonia

The temperature at which the second virial coefficient of a real gas is zero is called: (a) critical temperature (b) eutactic point (c) boiling point (d) Boyle's temperature

Which is not true in case of an ideal gas? (a) It cannot be converted into a liquid. (b) There is no interaction between the molecules. (c) All molecules of the gas move with same speed. (d) At a given temperature, \(P V\) is proportional to the amount of the gas.
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