Question

The factor $\frac{R}{N_A}$ in an ideal gas law is

• A. Celsius constant
• B. Characteristic gas constant
• C. Universal gas constant
• D. Boltzmann’s constant

Answer 1

The correct option is D Boltzmann’s constant

We know,
$PV=nRT$
$\Rightarrow PV=RT$ (for $n=1$ mole)
For 1 molecule,
$PV=\frac{R}{N_A}T=kT$
So, $\frac{R}{N_A}=k=\text{Boltzmann's constant}$