Physics MCQs for NEET — Practice Questions with Answers

Consider the following statements. If the van der Waals' parameters of two gases are given as

$$\begin{gathered} \mathrm{a}/{\mathrm{dm}}^6 \mathrm{bar} {\mathrm{mol}}^{-2} \mathrm{b}/{\mathrm{dm}}^3 {\mathrm{mol}}^{-1} \\ \mathrm{Gas} \mathrm{A} 6.5 0.055 \\ \mathrm{Gas} \mathrm{B} 2 0.01 \end{gathered}$$

then:

Pressure remaining the same, the volume of a given mass of an ideal gas increase for every degree centigrade rise in temperature by definite fraction of its volume at:

The critical temperature of a substance is:

The excluded volume of a gas will be larger, if $\frac{{\mathrm{T}}_{\mathrm{C}}}{{\mathrm{P}}_{\mathrm{C}}}$ is:

The correct order of temperature of a real gas is:

(I) Boyle's temperature
(II) Critical temperature
(III) Inversion temperature

The temperature at which the second virial coefficient of real gas is zero is called:

However great the pressure, a gas cannot be liquified above its:

The temperature at which real gases obey the ideal gas laws over a wide range of low pressure is called:

Inversion temperature $\left({\mathrm{T}}_{\mathrm{i}}=\frac{2\mathrm{a}}{\mathrm{Rb}}\right)$ is defined as the temperature above which if gas is expanded adiabatically it gets warm up but if temperature of gas is lower than T, then it will cool down. What will happen to a gas if it is adiabatically expanded at 600 K if its Boyle's temperature is 290 K?

The van der Waal's equation of law of corresponding states for 1 mole of gas is: