Question

Which of the following equations involve microscopic properties?

• A. $pV=nRT$
• B. $U=\sqrt{\left(u^2\right)}$
• C. $KE=\frac{1}{2}m{u}^2$
• D. $\frac{R_1}{R_2}=\sqrt{\frac{M_2}{M_1}}$

Answer 1

The correct option is A $pV=nRT$

$i)$ A microscopic property describes the behavior of a smaller sample of matter, an atom or molecule etc.

$ii)$ This approach considers that the systems are made up of a very large numbers of discrete particles known as molecules. These molecules have different velocities and energies. The values of these energies are constantly changing with time.

Look at the option $A$, $pV=nRT$

It involves microscopic properties.

The mole unit allows us to express amounts of atoms and molecules in visible amounts that we can understand.

Pressure, volume, temperature describes the behavior of microscopic particles.