Question

As the temperature is raised from ${20}^{o}C$ to ${40}^{o}C$,The average kinetic energy of neon atom changes by a factor of which of the following:

• A. $\frac{313}{293}$
• B. $\frac{0.313}{293}$
• C. 0.5
• D. 2

Answer 1

Answer: (A)

$\frac{313}{293}$

We know Average Kinetic energy is given by,

$K.E=\frac{3}{2}RT$

Here,

$E_1=\frac{3}{2}\times R\times 293$

$E_2=\frac{3}{2}\times R\times 313$

So,

$E_2=\frac{313}{293}\times E_1$