An electric bulb of volume 300 `cm^(3)` is sealed at temperature 300 K and pressure `10^(-4)` mm of mercury. Find the number of air molecules in the bulb.
(Given, `sigma=13.6xx10^(3)kgm^(-3) and k_(B)=1.38xx10^(-23)jK^(-1)`)

Explanation

To find the number of air molecules in the electric bulb, we will use the ideal gas equation in terms of the Boltzmann constant. The equation we will use is:

\[ PV = N k_B T \]

Where:
- \( P \) is the pressure in Pascals,
- \( V \) is the volume in cubic meters,
- \( N \) is the number of molecules,
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